./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/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_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/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_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/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 e6926b4c4456cf40fd2f7cdafc9f778396b8eaa34456b24490dcf7ecaf227025 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:14:32,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:14:32,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:14:32,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:14:32,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:14:32,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:14:32,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:14:32,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:14:32,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:14:32,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:14:32,582 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:14:32,584 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:14:32,584 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:14:32,586 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:14:32,587 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:14:32,588 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:14:32,588 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:14:32,589 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:14:32,589 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:14:32,590 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:14:32,592 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:14:32,593 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:14:32,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:14:32,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:14:32,596 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:14:32,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:14:32,597 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:14:32,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:14:32,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:14:32,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:14:32,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:14:32,600 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:14:32,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:14:32,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:14:32,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:14:32,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:14:32,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:14:32,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:32,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:14:32,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:14:32,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:14:32,605 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:14:32,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:14:32,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:14:32,606 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:14:32,607 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:14:32,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:14:32,607 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_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6926b4c4456cf40fd2f7cdafc9f778396b8eaa34456b24490dcf7ecaf227025 [2023-11-23 21:14:33,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:14:33,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:14:33,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:14:33,088 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:14:33,088 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:14:33,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i [2023-11-23 21:14:36,518 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:36,867 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:36,868 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i [2023-11-23 21:14:36,880 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/data/95e06d8c3/2b5b46ca94424d9592c319425e5756e4/FLAGdb2b90ba7 [2023-11-23 21:14:36,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/data/95e06d8c3/2b5b46ca94424d9592c319425e5756e4 [2023-11-23 21:14:36,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:36,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:36,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:36,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:36,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:36,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:36" (1/1) ... [2023-11-23 21:14:36,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6179cdc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:36, skipping insertion in model container [2023-11-23 21:14:36,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:36" (1/1) ... [2023-11-23 21:14:36,979 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:37,164 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_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i[917,930] [2023-11-23 21:14:37,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:37,259 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:37,274 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_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-87.i[917,930] [2023-11-23 21:14:37,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:37,376 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:37,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37 WrapperNode [2023-11-23 21:14:37,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:37,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:37,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:37,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:37,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,484 INFO L138 Inliner]: procedures = 26, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 372 [2023-11-23 21:14:37,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:37,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:37,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:37,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:37,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:37,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:37,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:37,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:37,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:37,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:37,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:37,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:14:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:14:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:14:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:14:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:14:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:37,894 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:37,898 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:14:38,678 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:14:39,398 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:14:39,399 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:14:39,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:39 BoogieIcfgContainer [2023-11-23 21:14:39,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:14:39,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:14:39,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:14:39,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:14:39,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:36" (1/3) ... [2023-11-23 21:14:39,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7678e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:39, skipping insertion in model container [2023-11-23 21:14:39,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (2/3) ... [2023-11-23 21:14:39,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7678e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:39, skipping insertion in model container [2023-11-23 21:14:39,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:39" (3/3) ... [2023-11-23 21:14:39,422 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-87.i [2023-11-23 21:14:39,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:14:39,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:14:39,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:14:39,538 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;@4fe6aa01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:14:39,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:14:39,545 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 21:14:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 21:14:39,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:39,559 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 21:14:39,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:39,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1345722375, now seen corresponding path program 1 times [2023-11-23 21:14:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:39,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966411233] [2023-11-23 21:14:39,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:39,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:39,934 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:14:39,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069129151] [2023-11-23 21:14:39,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:39,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:14:39,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:39,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:14:39,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba80bc6b-5ba3-4b9e-9c07-628907ea9569/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:14:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:40,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 139 conjunts are in the unsatisfiable core [2023-11-23 21:14:41,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:14:42,090 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 [2023-11-23 21:14:45,535 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 [2023-11-23 21:14:47,909 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 [2023-11-23 21:14:49,779 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 [2023-11-23 21:14:51,351 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 [2023-11-23 21:14:52,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 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 [2023-11-23 21:14:54,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2023-11-23 21:14:59,536 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 5 new quantified variables, introduced 0 case distinctions, treesize of input 851 treesize of output 606 [2023-11-23 21:14:59,740 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 5 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 551 [2023-11-23 21:15:00,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:00,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 20 [2023-11-23 21:15:00,596 INFO L349 Elim1Store]: treesize reduction 60, result has 23.1 percent of original size [2023-11-23 21:15:00,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 991 treesize of output 771 [2023-11-23 21:15:01,137 INFO L349 Elim1Store]: treesize reduction 77, result has 18.9 percent of original size [2023-11-23 21:15:01,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 809 treesize of output 797 [2023-11-23 21:15:01,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:01,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 22 [2023-11-23 21:15:13,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 260 [2023-11-23 21:15:13,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 119 treesize of output 96 [2023-11-23 21:15:13,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 74 treesize of output 59 [2023-11-23 21:15:13,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:13,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:13,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:13,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:14,179 INFO L349 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2023-11-23 21:15:14,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 285 treesize of output 274 [2023-11-23 21:15:16,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,094 INFO L349 Elim1Store]: treesize reduction 38, result has 19.1 percent of original size [2023-11-23 21:15:16,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 650 treesize of output 564 [2023-11-23 21:15:16,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 54 treesize of output 38 [2023-11-23 21:15:16,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:16,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 54 treesize of output 38 [2023-11-23 21:15:17,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 54 treesize of output 38 [2023-11-23 21:15:17,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:17,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 54 treesize of output 38 [2023-11-23 21:15:19,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 892 treesize of output 827 [2023-11-23 21:15:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:19,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:15:19,517 INFO L349 Elim1Store]: treesize reduction 217, result has 6.5 percent of original size [2023-11-23 21:15:19,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 818 treesize of output 1058 [2023-11-23 21:15:24,719 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:15:24,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 55 treesize of output 44 [2023-11-23 21:15:25,280 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:15:25,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 55 treesize of output 44