./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ --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 d1558071458a9b20d19a0574bae4bc888f78db92e0ff6316a4aff911aa1d4e26 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:41,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:41,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:59:41,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:41,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:41,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:41,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:41,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:41,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:41,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:41,541 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:41,543 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:41,544 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:41,546 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:59:41,547 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:41,547 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:41,548 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:59:41,549 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:59:41,549 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:41,550 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:59:41,552 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:59:41,553 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:59:41,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:41,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:59:41,556 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:59:41,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:59:41,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:59:41,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:41,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:59:41,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:41,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:59:41,561 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:59:41,562 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:59:41,562 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:41,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:41,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:41,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:41,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:41,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:41,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:59:41,565 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:59:41,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:59:41,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:59:41,566 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:41,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:41,567 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_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1558071458a9b20d19a0574bae4bc888f78db92e0ff6316a4aff911aa1d4e26 [2023-11-19 04:59:41,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:41,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:41,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:41,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:41,951 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:41,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-11-19 04:59:45,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:45,808 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:45,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-11-19 04:59:45,823 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/data/14c06796c/9f2d52e1bc084da1b95487f6cadfc0e7/FLAGd7a1ad4da [2023-11-19 04:59:45,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/data/14c06796c/9f2d52e1bc084da1b95487f6cadfc0e7 [2023-11-19 04:59:45,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:45,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:45,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:45,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:45,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:45,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:45" (1/1) ... [2023-11-19 04:59:45,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2ee141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:45, skipping insertion in model container [2023-11-19 04:59:45,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:45" (1/1) ... [2023-11-19 04:59:45,939 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:46,200 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_c82ebf8e-9638-4643-8186-51e51e621788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i[916,929] [2023-11-19 04:59:46,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:46,341 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:59:46,364 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_c82ebf8e-9638-4643-8186-51e51e621788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i[916,929] [2023-11-19 04:59:46,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:46,472 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:59:46,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46 WrapperNode [2023-11-19 04:59:46,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:46,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:46,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:59:46,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:59:46,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,552 INFO L138 Inliner]: procedures = 26, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 390 [2023-11-19 04:59:46,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:46,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:59:46,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:59:46,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:59:46,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:59:46,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:59:46,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:59:46,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:59:46,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (1/1) ... [2023-11-19 04:59:46,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:46,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:46,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:59:46,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:59:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:59:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:59:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:59:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:59:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:59:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:59:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:59:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:59:46,886 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:59:46,889 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:59:47,656 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:59:48,662 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:59:48,663 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:59:48,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:48 BoogieIcfgContainer [2023-11-19 04:59:48,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:59:48,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:59:48,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:59:48,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:59:48,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:45" (1/3) ... [2023-11-19 04:59:48,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39de0650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:48, skipping insertion in model container [2023-11-19 04:59:48,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:46" (2/3) ... [2023-11-19 04:59:48,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39de0650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:48, skipping insertion in model container [2023-11-19 04:59:48,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:48" (3/3) ... [2023-11-19 04:59:48,696 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-87.i [2023-11-19 04:59:48,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:59:48,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:59:48,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:59:48,799 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;@215740db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:59:48,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:59:48,808 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) [2023-11-19 04:59:48,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 04:59:48,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:48,822 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] [2023-11-19 04:59:48,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:48,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:48,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2016184553, now seen corresponding path program 1 times [2023-11-19 04:59:48,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:59:48,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809802779] [2023-11-19 04:59:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:48,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:59:49,249 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:59:49,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155187134] [2023-11-19 04:59:49,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:49,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:59:49,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:49,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:59:49,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c82ebf8e-9638-4643-8186-51e51e621788/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:59:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:50,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 142 conjunts are in the unsatisfiable core [2023-11-19 04:59:50,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:59:51,203 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 [2023-11-19 04:59:52,685 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 [2023-11-19 04:59:54,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:59:54,268 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 18 treesize of output 13 [2023-11-19 04:59:55,454 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 18 treesize of output 13 [2023-11-19 04:59:56,447 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 [2023-11-19 04:59:57,336 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 [2023-11-19 04:59:58,121 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 [2023-11-19 05:00:02,851 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 7 new quantified variables, introduced 0 case distinctions, treesize of input 508 treesize of output 301 [2023-11-19 05:00:03,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:00:03,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:00:03,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 05:00:03,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:00:03,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809802779] [2023-11-19 05:00:03,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 05:00:03,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155187134] [2023-11-19 05:00:03,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: var is still there: v_arrayElimArr_1 [2023-11-19 05:00:03,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1505843633] [2023-11-19 05:00:03,156 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2023-11-19 05:00:03,156 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:00:03,160 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:00:03,167 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:00:03,168 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:00:26,475 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 129 for LOIs [2023-11-19 05:00:26,506 INFO L180 IcfgInterpreter]: Interpretation finished