./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1733340110531036ec2730e9cf68ec8d1d2e7f12e2ee065e03b827b6d5da2aba --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:17:14,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:17:14,301 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:17:14,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:17:14,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:17:14,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:17:14,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:17:14,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:17:14,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:17:14,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:17:14,405 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:17:14,406 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:17:14,406 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:17:14,409 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:17:14,409 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:17:14,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:17:14,410 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:17:14,411 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:17:14,412 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:17:14,412 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:17:14,413 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:17:14,414 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:17:14,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:17:14,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:17:14,417 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:17:14,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:17:14,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:17:14,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:17:14,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:17:14,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:17:14,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:17:14,422 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:17:14,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:17:14,423 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:17:14,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:17:14,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:17:14,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:17:14,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:14,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:17:14,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:17:14,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:17:14,437 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:17:14,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:17:14,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:17:14,439 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:17:14,439 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:17:14,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:17:14,440 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_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1733340110531036ec2730e9cf68ec8d1d2e7f12e2ee065e03b827b6d5da2aba [2023-11-23 21:17:14,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:17:14,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:17:14,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:17:14,878 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:17:14,879 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:17:14,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i [2023-11-23 21:17:18,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:17:18,394 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:17:18,395 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i [2023-11-23 21:17:18,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/data/a715da0e1/25e938acd32e4309842044bbeb8aeebd/FLAG41ef3d394 [2023-11-23 21:17:18,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/data/a715da0e1/25e938acd32e4309842044bbeb8aeebd [2023-11-23 21:17:18,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:17:18,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:17:18,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:18,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:17:18,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:17:18,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45892f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18, skipping insertion in model container [2023-11-23 21:17:18,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:17:18,689 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i[917,930] [2023-11-23 21:17:18,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:18,787 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:17:18,806 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i[917,930] [2023-11-23 21:17:18,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:18,883 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:17:18,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18 WrapperNode [2023-11-23 21:17:18,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:18,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:18,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:17:18,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:17:18,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,963 INFO L138 Inliner]: procedures = 26, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 366 [2023-11-23 21:17:18,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:18,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:17:18,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:17:18,972 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:17:18,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:18,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:19,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:19,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:19,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:19,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:19,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:17:19,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:17:19,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:17:19,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:17:19,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (1/1) ... [2023-11-23 21:17:19,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:19,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:19,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:17:19,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:17:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:17:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:17:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:17:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:17:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:17:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:17:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:17:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:17:19,275 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:17:19,278 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:17:19,837 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:20,478 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:20,479 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:17:20,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:20 BoogieIcfgContainer [2023-11-23 21:17:20,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:20,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:20,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:20,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:20,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:17:18" (1/3) ... [2023-11-23 21:17:20,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbcf1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:20, skipping insertion in model container [2023-11-23 21:17:20,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:18" (2/3) ... [2023-11-23 21:17:20,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbcf1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:20, skipping insertion in model container [2023-11-23 21:17:20,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:20" (3/3) ... [2023-11-23 21:17:20,491 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-87.i [2023-11-23 21:17:20,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:20,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:17:20,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:20,579 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36ecab36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:20,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:17:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:17:20,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 21:17:20,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:20,606 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:20,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:20,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1897520887, now seen corresponding path program 1 times [2023-11-23 21:17:20,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:20,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653856837] [2023-11-23 21:17:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:20,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:20,880 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:17:20,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097069873] [2023-11-23 21:17:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:20,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:17:20,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:20,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:17:20,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77d69bc-60c9-446b-ba5b-a233baafa963/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:17:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:22,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 158 conjunts are in the unsatisfiable core [2023-11-23 21:17:22,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:24,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 21:17:26,685 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 25 treesize of output 13 [2023-11-23 21:17:28,181 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 25 treesize of output 13 [2023-11-23 21:17:30,486 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 39 treesize of output 26 [2023-11-23 21:17:32,896 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 53 treesize of output 39 [2023-11-23 21:17:35,381 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 67 treesize of output 52 [2023-11-23 21:17:42,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 209 [2023-11-23 21:17:42,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:42,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 45 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 240 [2023-11-23 21:17:43,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:43,469 INFO L224 Elim1Store]: Index analysis took 116 ms [2023-11-23 21:17:43,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 100 [2023-11-23 21:17:43,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 244 [2023-11-23 21:17:44,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:17:44,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 10 select indices, 10 select index equivalence classes, 66 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 327 [2023-11-23 21:17:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 129 proven. 42 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 21:17:50,508 INFO L327 TraceCheckSpWp]: Computing backward predicates...