./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.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_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/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_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/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_3392efda-02ba-4137-a41d-7a3c91330ebf/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 2be5ecf5348458671ab0cc252df5fcce5a265155e50eac356b5f3e450b866c41 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:28:42,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:28:42,688 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:28:42,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:28:42,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:28:42,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:28:42,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:28:42,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:28:42,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:28:42,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:28:42,750 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:28:42,751 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:28:42,751 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:28:42,753 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:28:42,753 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:28:42,754 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:28:42,754 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:28:42,755 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:28:42,755 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:28:42,756 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:28:42,756 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:28:42,757 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:28:42,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:28:42,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:28:42,759 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:28:42,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:28:42,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:28:42,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:28:42,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:28:42,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:28:42,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:28:42,763 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:28:42,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:28:42,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:28:42,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:28:42,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:28:42,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:28:42,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:42,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:28:42,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:28:42,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:28:42,766 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:28:42,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:28:42,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:28:42,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:28:42,767 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:28:42,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:28:42,768 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_3392efda-02ba-4137-a41d-7a3c91330ebf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2be5ecf5348458671ab0cc252df5fcce5a265155e50eac356b5f3e450b866c41 [2023-11-23 21:28:43,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:28:43,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:28:43,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:28:43,138 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:28:43,138 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:28:43,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i [2023-11-23 21:28:46,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:28:46,787 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:28:46,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i [2023-11-23 21:28:46,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/data/b15eac330/c99409ab6ff84746b08a65c01460348b/FLAGb7b1b34a5 [2023-11-23 21:28:46,815 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/data/b15eac330/c99409ab6ff84746b08a65c01460348b [2023-11-23 21:28:46,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:28:46,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:28:46,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:46,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:28:46,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:28:46,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:46" (1/1) ... [2023-11-23 21:28:46,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f52550c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:46, skipping insertion in model container [2023-11-23 21:28:46,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:46" (1/1) ... [2023-11-23 21:28:46,876 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:28:47,041 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_3392efda-02ba-4137-a41d-7a3c91330ebf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i[915,928] [2023-11-23 21:28:47,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:47,117 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:28:47,128 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_3392efda-02ba-4137-a41d-7a3c91330ebf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i[915,928] [2023-11-23 21:28:47,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:47,194 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:28:47,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47 WrapperNode [2023-11-23 21:28:47,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:47,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:47,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:28:47,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:28:47,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,271 INFO L138 Inliner]: procedures = 26, calls = 168, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 404 [2023-11-23 21:28:47,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:47,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:28:47,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:28:47,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:28:47,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:28:47,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:28:47,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:28:47,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:28:47,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (1/1) ... [2023-11-23 21:28:47,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:47,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:47,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:28:47,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:28:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:28:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:28:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:28:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:28:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:28:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:28:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:28:47,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:28:47,615 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:28:47,617 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:28:48,264 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:28:48,797 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:28:48,798 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:28:48,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:48 BoogieIcfgContainer [2023-11-23 21:28:48,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:28:48,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:28:48,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:28:48,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:28:48,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:28:46" (1/3) ... [2023-11-23 21:28:48,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120c8dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:48, skipping insertion in model container [2023-11-23 21:28:48,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:47" (2/3) ... [2023-11-23 21:28:48,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120c8dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:48, skipping insertion in model container [2023-11-23 21:28:48,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:48" (3/3) ... [2023-11-23 21:28:48,813 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-5.i [2023-11-23 21:28:48,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:28:48,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:28:48,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:28:48,904 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;@ae5a28d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:28:48,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:28:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:28:48,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:28:48,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:48,924 INFO L195 NwaCegarLoop]: trace histogram [20, 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:48,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:48,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:48,933 INFO L85 PathProgramCache]: Analyzing trace with hash -651926141, now seen corresponding path program 1 times [2023-11-23 21:28:48,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:48,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91390881] [2023-11-23 21:28:48,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:48,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:49,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:28:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115361512] [2023-11-23 21:28:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:49,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:49,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:49,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:28:49,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3392efda-02ba-4137-a41d-7a3c91330ebf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:28:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:50,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 209 conjunts are in the unsatisfiable core [2023-11-23 21:28:50,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:52,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:52,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:52,394 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 46 treesize of output 43 [2023-11-23 21:28:56,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:56,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:56,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:56,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:56,137 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 39 treesize of output 43 [2023-11-23 21:28:58,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:58,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:58,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:58,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:28:58,956 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 46 treesize of output 43 [2023-11-23 21:29:01,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:01,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:01,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:01,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:01,615 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 39 treesize of output 43 [2023-11-23 21:29:03,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:03,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:03,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:03,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:03,734 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 46 treesize of output 43 [2023-11-23 21:29:06,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:06,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:06,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:06,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:06,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:06,047 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 55 treesize of output 55 [2023-11-23 21:29:08,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:08,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:08,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:08,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:08,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:08,663 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 55 treesize of output 55 [2023-11-23 21:29:11,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:11,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:11,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:11,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:11,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:11,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2023-11-23 21:29:14,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:14,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:14,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:14,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:14,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:14,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:29:14,551 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 76 treesize of output 75 [2023-11-23 21:29:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 4 proven. 346 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 21:29:23,578 INFO L327 TraceCheckSpWp]: Computing backward predicates...