./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/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 5d39645531c2e289d9f43a5da1a6328789e313cb06da9f811e7841e4f10030f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:35,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:35,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:12:35,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:35,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:35,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:35,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:35,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:35,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:35,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:35,651 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:35,651 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:35,652 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:35,654 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:12:35,654 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:35,654 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:35,655 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:12:35,655 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:12:35,656 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:35,656 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:12:35,658 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:12:35,659 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:12:35,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:35,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:12:35,661 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:12:35,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:12:35,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:12:35,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:35,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:12:35,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:35,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:12:35,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:12:35,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:12:35,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:35,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:35,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:35,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:35,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:35,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:35,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:12:35,668 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:12:35,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:12:35,668 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:12:35,669 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:35,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:35,670 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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d39645531c2e289d9f43a5da1a6328789e313cb06da9f811e7841e4f10030f5 [2023-11-19 05:12:35,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:36,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:36,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:36,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:36,010 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:36,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i [2023-11-19 05:12:39,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:39,318 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:39,319 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i [2023-11-19 05:12:39,328 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/data/be1b8126a/c54d26c65dea4c538253d46e9d18a1fa/FLAG3aeba1118 [2023-11-19 05:12:39,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/data/be1b8126a/c54d26c65dea4c538253d46e9d18a1fa [2023-11-19 05:12:39,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:39,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:39,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:39,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:39,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:39,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316ad028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39, skipping insertion in model container [2023-11-19 05:12:39,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:39,542 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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i[913,926] [2023-11-19 05:12:39,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:39,595 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:39,608 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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i[913,926] [2023-11-19 05:12:39,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:39,650 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:39,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39 WrapperNode [2023-11-19 05:12:39,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:39,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:39,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:39,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:39,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,734 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-19 05:12:39,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:39,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:39,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:39,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:39,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:39,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:39,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:39,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:39,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (1/1) ... [2023-11-19 05:12:39,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:39,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:39,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:39,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:12:39,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:12:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:12:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:39,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:39,992 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:39,994 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:40,304 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:40,572 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:40,572 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:12:40,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:40 BoogieIcfgContainer [2023-11-19 05:12:40,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:40,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:40,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:40,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:40,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:39" (1/3) ... [2023-11-19 05:12:40,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff60976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:40, skipping insertion in model container [2023-11-19 05:12:40,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:39" (2/3) ... [2023-11-19 05:12:40,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff60976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:40, skipping insertion in model container [2023-11-19 05:12:40,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:40" (3/3) ... [2023-11-19 05:12:40,587 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-39.i [2023-11-19 05:12:40,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:40,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:40,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:40,659 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;@5d4b226e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:40,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 05:12:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 05:12:40,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:40,675 INFO L195 NwaCegarLoop]: trace histogram [16, 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 05:12:40,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:40,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:40,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1783930065, now seen corresponding path program 1 times [2023-11-19 05:12:40,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:40,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555115904] [2023-11-19 05:12:40,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:40,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:40,840 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:12:40,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619738337] [2023-11-19 05:12:40,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:40,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:12:40,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:40,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:12:40,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:12:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:12:41,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:12:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:12:41,198 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:12:41,201 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:12:41,202 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:12:41,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 05:12:41,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:12:41,420 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:12:41,424 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:12:41,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:12:41 BoogieIcfgContainer [2023-11-19 05:12:41,497 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:12:41,498 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:12:41,498 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:12:41,498 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:12:41,499 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:40" (3/4) ... [2023-11-19 05:12:41,501 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:12:41,502 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:12:41,504 INFO L158 Benchmark]: Toolchain (without parser) took 2157.03ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 115.7MB in the beginning and 140.1MB in the end (delta: -24.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,504 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 163.6MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:41,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.38ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 103.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.24ms. Allocated memory is still 163.6MB. Free memory was 103.1MB in the beginning and 100.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,506 INFO L158 Benchmark]: Boogie Preprocessor took 65.86ms. Allocated memory is still 163.6MB. Free memory was 100.6MB in the beginning and 99.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,507 INFO L158 Benchmark]: RCFGBuilder took 774.16ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 98.9MB in the beginning and 173.7MB in the end (delta: -74.8MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,508 INFO L158 Benchmark]: TraceAbstraction took 917.04ms. Allocated memory is still 205.5MB. Free memory was 172.6MB in the beginning and 141.2MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 05:12:41,508 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 205.5MB. Free memory was 141.2MB in the beginning and 140.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:41,512 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 163.6MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.38ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 103.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.24ms. Allocated memory is still 163.6MB. Free memory was 103.1MB in the beginning and 100.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.86ms. Allocated memory is still 163.6MB. Free memory was 100.6MB in the beginning and 99.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 774.16ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 98.9MB in the beginning and 173.7MB in the end (delta: -74.8MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * TraceAbstraction took 917.04ms. Allocated memory is still 205.5MB. Free memory was 172.6MB in the beginning and 141.2MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 205.5MB. Free memory was 141.2MB in the beginning and 140.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 39, overapproximation of shiftLeft at line 47. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -5; [L23] signed short int var_1_2 = 0; [L24] signed short int var_1_3 = 1000; [L25] signed short int var_1_4 = 10; [L26] signed short int var_1_5 = 32; [L27] signed long int var_1_6 = 5; [L28] float var_1_7 = 1.1; [L29] float var_1_8 = 7.8; [L30] float var_1_9 = 1.75; [L31] signed long int var_1_10 = 32; [L32] unsigned char var_1_11 = 64; [L33] signed long int var_1_12 = 1230482582; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_short() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L62] CALL assume_abort_if_not(var_1_2 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L63] var_1_3 = __VERIFIER_nondet_short() [L64] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L65] CALL assume_abort_if_not(var_1_3 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_3 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L66] var_1_4 = __VERIFIER_nondet_short() [L67] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L68] CALL assume_abort_if_not(var_1_4 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L69] var_1_5 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L71] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L72] var_1_7 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=39/5, var_1_9=7/4] [L74] var_1_8 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=7/4] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=7/4] [L76] var_1_9 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L78] var_1_11 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L80] CALL assume_abort_if_not(var_1_11 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 <= 255) VAL [isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L81] CALL assume_abort_if_not(var_1_11 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_11 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1230482582, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L82] var_1_12 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_12 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1073741823, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 >= 1073741823) VAL [isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1073741823, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L84] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1073741823, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=255, var_1_12=1073741823, var_1_1=-5, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=5, var_1_7=2, var_1_8=3, var_1_9=4] [L97] RET updateVariables() [L98] CALL step() [L37] var_1_1 = ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) [L38] COND TRUE var_1_2 >= var_1_1 [L39] COND FALSE !(((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) [L42] var_1_6 = var_1_1 [L47] EXPR var_1_4 << var_1_2 [L47] signed long int stepLocal_1 = var_1_6 + (var_1_4 << var_1_2); [L48] signed long int stepLocal_0 = var_1_2 - (var_1_12 - var_1_5); [L49] COND FALSE !(stepLocal_1 != var_1_5) [L56] var_1_10 = var_1_2 [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR ((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2))) [L89-L90] return ((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=16381, var_1_11=255, var_1_12=1073741823, var_1_1=16, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=16, var_1_7=2, var_1_8=3, var_1_9=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=16381, var_1_11=255, var_1_12=1073741823, var_1_1=16, var_1_2=16381, var_1_3=15, var_1_4=16366, var_1_5=16383, var_1_6=16, var_1_7=2, var_1_8=3, var_1_9=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:12:41,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/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 5d39645531c2e289d9f43a5da1a6328789e313cb06da9f811e7841e4f10030f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:43,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:44,107 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:12:44,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:44,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:44,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:44,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:44,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:44,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:44,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:44,143 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:44,143 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:44,144 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:44,144 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:44,145 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:44,145 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:44,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:44,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:12:44,147 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:12:44,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:12:44,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:44,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:12:44,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:44,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:12:44,149 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:12:44,150 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:12:44,150 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:12:44,151 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:12:44,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:12:44,151 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:44,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:44,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:12:44,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:44,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:44,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:44,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:44,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:12:44,153 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:12:44,154 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:12:44,154 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:12:44,154 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:44,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:44,155 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d39645531c2e289d9f43a5da1a6328789e313cb06da9f811e7841e4f10030f5 [2023-11-19 05:12:44,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:44,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:44,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:44,560 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:44,561 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:44,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i [2023-11-19 05:12:47,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:47,915 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:47,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i [2023-11-19 05:12:47,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/data/11703cbd5/bab1018e39384cea86acf3094488c713/FLAG234e4cdbf [2023-11-19 05:12:47,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/data/11703cbd5/bab1018e39384cea86acf3094488c713 [2023-11-19 05:12:47,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:47,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:47,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:47,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:47,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:47,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:47" (1/1) ... [2023-11-19 05:12:47,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594f1c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:47, skipping insertion in model container [2023-11-19 05:12:47,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:47" (1/1) ... [2023-11-19 05:12:47,987 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:48,142 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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i[913,926] [2023-11-19 05:12:48,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:48,217 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:48,235 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_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i[913,926] [2023-11-19 05:12:48,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:48,317 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:48,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48 WrapperNode [2023-11-19 05:12:48,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:48,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:48,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:48,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:48,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,374 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2023-11-19 05:12:48,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:48,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:48,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:48,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:48,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:48,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:48,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:48,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:48,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (1/1) ... [2023-11-19 05:12:48,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:48,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:48,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:48,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:12:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:12:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:12:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:48,590 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:48,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:49,062 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:49,070 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:49,070 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:12:49,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:49 BoogieIcfgContainer [2023-11-19 05:12:49,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:49,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:49,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:49,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:49,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:47" (1/3) ... [2023-11-19 05:12:49,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c1ebe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:49, skipping insertion in model container [2023-11-19 05:12:49,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:48" (2/3) ... [2023-11-19 05:12:49,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c1ebe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:49, skipping insertion in model container [2023-11-19 05:12:49,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:49" (3/3) ... [2023-11-19 05:12:49,083 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-39.i [2023-11-19 05:12:49,101 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:49,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:49,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:49,169 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;@bb57b54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:49,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:49,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 05:12:49,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:12:49,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:49,188 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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] [2023-11-19 05:12:49,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:49,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:49,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1678023097, now seen corresponding path program 1 times [2023-11-19 05:12:49,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:49,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000562150] [2023-11-19 05:12:49,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:49,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:12:49,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:49,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:12:49,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:12:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:49,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:12:49,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:12:49,581 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2023-11-19 05:12:49,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:12:49,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:12:49,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000562150] [2023-11-19 05:12:49,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000562150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:49,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:49,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:12:49,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090336468] [2023-11-19 05:12:49,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:49,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:12:49,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:12:49,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:12:49,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:12:49,632 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 05:12:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:49,681 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2023-11-19 05:12:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:12:49,684 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2023-11-19 05:12:49,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:49,694 INFO L225 Difference]: With dead ends: 91 [2023-11-19 05:12:49,695 INFO L226 Difference]: Without dead ends: 45 [2023-11-19 05:12:49,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:12:49,704 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:49,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:12:49,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-19 05:12:49,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-19 05:12:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 05:12:49,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2023-11-19 05:12:49,770 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 101 [2023-11-19 05:12:49,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:49,771 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2023-11-19 05:12:49,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 05:12:49,771 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2023-11-19 05:12:49,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:12:49,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:49,776 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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] [2023-11-19 05:12:49,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:12:49,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:12:49,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:49,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:49,978 INFO L85 PathProgramCache]: Analyzing trace with hash 852212145, now seen corresponding path program 1 times [2023-11-19 05:12:49,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:12:49,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969245183] [2023-11-19 05:12:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:49,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:12:49,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:12:49,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:12:49,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d7ad4b6-7522-4a9d-88be-5dcabaeb265d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:12:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:50,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 05:12:50,295 INFO L285 TraceCheckSpWp]: Computing forward predicates...