./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/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_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/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_0e85ce3a-6792-48aa-b00e-919cb0131cb0/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 50aaa9c38941e3902867fed1ab11249c92826155dddcdcedd0a40439bce25b5e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:20:33,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:20:33,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:20:33,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:20:33,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:20:33,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:20:33,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:20:33,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:20:33,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:20:33,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:20:33,559 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:20:33,560 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:20:33,560 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:20:33,562 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:20:33,563 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:20:33,563 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:20:33,563 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:20:33,564 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:20:33,564 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:20:33,564 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:20:33,569 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:20:33,571 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:20:33,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:20:33,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:20:33,572 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:20:33,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:20:33,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:20:33,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:20:33,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:20:33,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:20:33,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:20:33,574 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:20:33,574 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:20:33,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:20:33,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:20:33,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:20:33,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:20:33,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:20:33,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:20:33,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:20:33,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:20:33,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:20:33,578 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:20:33,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:20:33,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:20:33,579 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:20:33,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:20:33,579 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_0e85ce3a-6792-48aa-b00e-919cb0131cb0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50aaa9c38941e3902867fed1ab11249c92826155dddcdcedd0a40439bce25b5e [2024-11-09 05:20:33,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:20:33,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:20:33,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:20:33,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:20:33,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:20:33,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i Unable to find full path for "g++" [2024-11-09 05:20:35,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:20:36,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:20:36,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2024-11-09 05:20:36,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/data/5cd1a0d04/e0a9a0c8f0504542a2e1b3df65ac7fb5/FLAG8169a529b [2024-11-09 05:20:36,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/data/5cd1a0d04/e0a9a0c8f0504542a2e1b3df65ac7fb5 [2024-11-09 05:20:36,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:20:36,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:20:36,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:20:36,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:20:36,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:20:36,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356520b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36, skipping insertion in model container [2024-11-09 05:20:36,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:20:36,343 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_0e85ce3a-6792-48aa-b00e-919cb0131cb0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i[916,929] [2024-11-09 05:20:36,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:20:36,418 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:20:36,432 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_0e85ce3a-6792-48aa-b00e-919cb0131cb0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i[916,929] [2024-11-09 05:20:36,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:20:36,496 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:20:36,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36 WrapperNode [2024-11-09 05:20:36,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:20:36,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:20:36,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:20:36,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:20:36,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,564 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 465 [2024-11-09 05:20:36,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:20:36,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:20:36,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:20:36,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:20:36,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:20:36,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:20:36,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:20:36,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:20:36,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (1/1) ... [2024-11-09 05:20:36,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:20:36,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:36,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:20:36,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:20:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:20:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:20:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:20:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:20:36,751 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:20:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:20:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:20:36,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:20:36,934 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:20:36,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:20:37,467 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-09 05:20:37,469 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:20:38,056 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:20:38,056 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:20:38,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:20:38 BoogieIcfgContainer [2024-11-09 05:20:38,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:20:38,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:20:38,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:20:38,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:20:38,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:20:36" (1/3) ... [2024-11-09 05:20:38,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce4d7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:20:38, skipping insertion in model container [2024-11-09 05:20:38,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:20:36" (2/3) ... [2024-11-09 05:20:38,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce4d7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:20:38, skipping insertion in model container [2024-11-09 05:20:38,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:20:38" (3/3) ... [2024-11-09 05:20:38,070 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-32.i [2024-11-09 05:20:38,089 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:20:38,090 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:20:38,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:20:38,181 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;@77a78f00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:20:38,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:20:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:20:38,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 05:20:38,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:38,198 INFO L215 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:20:38,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:20:38,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:38,205 INFO L85 PathProgramCache]: Analyzing trace with hash -496233760, now seen corresponding path program 1 times [2024-11-09 05:20:38,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:38,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378463190] [2024-11-09 05:20:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:38,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:50,262 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-09 05:21:50,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:50,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378463190] [2024-11-09 05:21:50,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378463190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:21:50,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477979471] [2024-11-09 05:21:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:50,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:50,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:50,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:50,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e85ce3a-6792-48aa-b00e-919cb0131cb0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:21:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:50,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 152 conjuncts are in the unsatisfiable core [2024-11-09 05:21:50,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:51,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 05:21:54,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-09 05:21:56,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 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 05:21:58,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 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 05:22:00,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 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 05:22:02,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 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 05:22:03,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 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 05:22:04,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 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 05:22:05,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 69 [2024-11-09 05:22:08,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:22:08,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 427 [2024-11-09 05:22:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 4 proven. 291 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:22:10,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:26,787 WARN L286 SmtUtils]: Spent 5.04s 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 05:26:08,608 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:26:34,964 WARN L286 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:26:51,619 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:26:57,655 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:27:05,794 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:27:24,378 WARN L286 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:28:11,856 WARN L286 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:28:19,983 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:28:33,519 WARN L286 SmtUtils]: Spent 5.36s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:28:55,337 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:29:01,136 WARN L286 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:29:32,623 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:29:43,986 WARN L286 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:29:52,740 WARN L286 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:30:38,269 WARN L286 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:30:56,346 WARN L286 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:31:31,722 WARN L286 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 36 DAG size of output: 33 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:32:07,076 WARN L286 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 27 DAG size of output: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:32:38,781 WARN L286 SmtUtils]: Spent 7.00s 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 05:32:49,142 WARN L286 SmtUtils]: Spent 10.36s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:32:56,378 WARN L286 SmtUtils]: Spent 7.24s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:33:09,722 WARN L286 SmtUtils]: Spent 10.83s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:33:24,145 WARN L286 SmtUtils]: Spent 11.06s 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 05:33:31,747 WARN L286 SmtUtils]: Spent 7.60s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:33:49,094 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 31 DAG size of output: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:34:04,683 WARN L286 SmtUtils]: Spent 15.59s on a formula simplification. DAG size of input: 36 DAG size of output: 34 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:34:12,909 WARN L286 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 22 DAG size of output: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:34:24,330 WARN L286 SmtUtils]: Spent 11.42s on a formula simplification. DAG size of input: 36 DAG size of output: 33 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:34:33,418 WARN L286 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 21 DAG size of output: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:34:51,563 WARN L286 SmtUtils]: Spent 14.66s on a formula simplification. DAG size of input: 27 DAG size of output: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:35:03,739 WARN L286 SmtUtils]: Spent 12.17s on a formula simplification. DAG size of input: 57 DAG size of output: 55 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)