./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh --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 64bit --witnessprinter.graph.data.programhash a85f457a181079a0b5789d13788d6c7347ae80776212b7f747148ec13e9b6cf1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:48:11,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:48:11,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 13:48:11,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:48:11,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:48:11,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:48:11,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:48:11,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:48:11,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:48:11,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:48:11,438 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:48:11,439 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:48:11,439 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:48:11,440 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:48:11,440 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:48:11,441 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:48:11,441 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:48:11,442 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:48:11,442 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:48:11,443 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:48:11,443 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:48:11,444 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:48:11,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:48:11,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:48:11,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:48:11,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:48:11,446 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:48:11,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:48:11,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:48:11,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:48:11,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:48:11,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:48:11,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:48:11,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:48:11,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:48:11,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:48:11,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:48:11,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:48:11,450 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:48:11,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:48:11,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:48:11,451 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:48:11,451 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:48:11,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:48:11,452 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_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a85f457a181079a0b5789d13788d6c7347ae80776212b7f747148ec13e9b6cf1 [2023-12-02 13:48:11,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:48:11,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:48:11,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:48:11,684 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:48:11,685 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:48:11,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c [2023-12-02 13:48:14,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:48:14,614 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:48:14,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c [2023-12-02 13:48:14,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/data/f00955bbd/b75ef65e7b824fb7a8d408716f2dee99/FLAG3d73380a3 [2023-12-02 13:48:14,634 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/data/f00955bbd/b75ef65e7b824fb7a8d408716f2dee99 [2023-12-02 13:48:14,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:48:14,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:48:14,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:48:14,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:48:14,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:48:14,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3561a523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14, skipping insertion in model container [2023-12-02 13:48:14,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:48:14,782 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_8d46e90b-7bc0-4b41-9487-b74366cf2623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c[1259,1272] [2023-12-02 13:48:14,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:48:14,833 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:48:14,842 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_8d46e90b-7bc0-4b41-9487-b74366cf2623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c[1259,1272] [2023-12-02 13:48:14,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:48:14,880 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:48:14,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14 WrapperNode [2023-12-02 13:48:14,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:48:14,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:48:14,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:48:14,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:48:14,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,934 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 208 [2023-12-02 13:48:14,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:48:14,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:48:14,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:48:14,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:48:14,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,967 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:48:14,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:48:14,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:48:14,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:48:14,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (1/1) ... [2023-12-02 13:48:14,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:48:14,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:48:15,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:48:15,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:48:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:48:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:48:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:48:15,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:48:15,144 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:48:15,147 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:48:15,451 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:48:15,609 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:48:15,609 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:48:15,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:48:15 BoogieIcfgContainer [2023-12-02 13:48:15,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:48:15,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:48:15,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:48:15,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:48:15,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:48:14" (1/3) ... [2023-12-02 13:48:15,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af41939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:48:15, skipping insertion in model container [2023-12-02 13:48:15,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:14" (2/3) ... [2023-12-02 13:48:15,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af41939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:48:15, skipping insertion in model container [2023-12-02 13:48:15,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:48:15" (3/3) ... [2023-12-02 13:48:15,619 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p04.c [2023-12-02 13:48:15,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:48:15,633 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:48:15,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:48:15,677 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;@348edf1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:48:15,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:48:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:15,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:48:15,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:15,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:48:15,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:48:15,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:15,692 INFO L85 PathProgramCache]: Analyzing trace with hash 5362219, now seen corresponding path program 1 times [2023-12-02 13:48:15,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:48:15,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452662033] [2023-12-02 13:48:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:15,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:48:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:48:15,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:48:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:48:16,031 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:48:16,033 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:48:16,034 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:48:16,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:48:16,039 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:48:16,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:48:16,057 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 13:48:16,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:48:16 BoogieIcfgContainer [2023-12-02 13:48:16,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:48:16,067 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:48:16,067 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:48:16,067 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:48:16,067 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:48:15" (3/4) ... [2023-12-02 13:48:16,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:48:16,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:48:16,072 INFO L158 Benchmark]: Toolchain (without parser) took 1434.30ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 92.7MB in the beginning and 60.4MB in the end (delta: 32.4MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2023-12-02 13:48:16,072 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:48:16,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.88ms. Allocated memory is still 127.9MB. Free memory was 92.7MB in the beginning and 80.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:48:16,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.31ms. Allocated memory is still 127.9MB. Free memory was 80.1MB in the beginning and 75.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:48:16,073 INFO L158 Benchmark]: Boogie Preprocessor took 40.26ms. Allocated memory is still 127.9MB. Free memory was 75.9MB in the beginning and 74.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:48:16,074 INFO L158 Benchmark]: RCFGBuilder took 634.66ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 73.8MB in the beginning and 92.9MB in the end (delta: -19.0MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-12-02 13:48:16,075 INFO L158 Benchmark]: TraceAbstraction took 452.97ms. Allocated memory is still 155.2MB. Free memory was 91.8MB in the beginning and 60.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 13:48:16,075 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 155.2MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:48:16,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.88ms. Allocated memory is still 127.9MB. Free memory was 92.7MB in the beginning and 80.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.31ms. Allocated memory is still 127.9MB. Free memory was 80.1MB in the beginning and 75.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.26ms. Allocated memory is still 127.9MB. Free memory was 75.9MB in the beginning and 74.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 634.66ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 73.8MB in the beginning and 92.9MB in the end (delta: -19.0MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 452.97ms. Allocated memory is still 155.2MB. Free memory was 91.8MB in the beginning and 60.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 155.2MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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: 21]: 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 bitwiseOr at line 101, overapproximation of bitwiseAnd at line 89. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L35] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 3); [L36] const SORT_7 msb_SORT_7 = (SORT_7)1 << (3 - 1); [L38] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 2); [L39] const SORT_14 msb_SORT_14 = (SORT_14)1 << (2 - 1); [L41] const SORT_7 var_8 = 0; [L42] const SORT_1 var_12 = 0; [L43] const SORT_14 var_16 = 0; [L44] const SORT_1 var_21 = 1; [L45] const SORT_7 var_50 = 1; [L46] const SORT_7 var_52 = 4; [L48] SORT_1 input_2; [L49] SORT_3 input_4; [L50] SORT_5 input_6; [L51] SORT_3 input_25; [L52] SORT_3 input_27; [L53] SORT_3 input_29; [L54] SORT_1 input_31; [L55] SORT_5 input_33; [L56] SORT_3 input_35; [L57] SORT_3 input_37; [L58] SORT_3 input_39; [L59] SORT_3 input_41; [L60] SORT_3 input_43; [L61] SORT_3 input_45; [L62] SORT_3 input_47; [L64] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 [L64] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L66] SORT_7 init_10_arg_1 = var_8; [L67] state_9 = init_10_arg_1 VAL [init_10_arg_1=0, mask_SORT_14=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_5=4095, mask_SORT_7=7, msb_SORT_14=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_5=2048, msb_SORT_7=4, state_9=0, var_12=0, var_16=0, var_21=1, var_50=1, var_52=4, var_8=0] [L70] input_2 = __VERIFIER_nondet_uchar() [L71] input_4 = __VERIFIER_nondet_uchar() [L72] input_6 = __VERIFIER_nondet_ushort() [L73] input_25 = __VERIFIER_nondet_uchar() [L74] input_27 = __VERIFIER_nondet_uchar() [L75] input_29 = __VERIFIER_nondet_uchar() [L76] input_31 = __VERIFIER_nondet_uchar() [L77] input_33 = __VERIFIER_nondet_ushort() [L78] input_35 = __VERIFIER_nondet_uchar() [L79] input_37 = __VERIFIER_nondet_uchar() [L80] input_39 = __VERIFIER_nondet_uchar() [L81] input_41 = __VERIFIER_nondet_uchar() [L82] input_43 = __VERIFIER_nondet_uchar() [L83] input_45 = __VERIFIER_nondet_uchar() [L84] input_47 = __VERIFIER_nondet_uchar() [L87] SORT_7 var_11_arg_0 = state_9; [L88] SORT_1 var_11 = var_11_arg_0 >> 2; [L89] EXPR var_11 & mask_SORT_1 [L89] var_11 = var_11 & mask_SORT_1 [L90] SORT_1 var_13_arg_0 = var_11; [L91] SORT_1 var_13_arg_1 = var_12; [L92] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L93] SORT_7 var_15_arg_0 = state_9; [L94] SORT_14 var_15 = var_15_arg_0 >> 0; [L95] EXPR var_15 & mask_SORT_14 [L95] var_15 = var_15 & mask_SORT_14 [L96] SORT_14 var_17_arg_0 = var_15; [L97] SORT_14 var_17_arg_1 = var_16; [L98] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L99] SORT_1 var_18_arg_0 = var_13; [L100] SORT_1 var_18_arg_1 = var_17; [L101] EXPR var_18_arg_0 | var_18_arg_1 [L101] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L102] SORT_1 var_22_arg_0 = var_18; [L103] SORT_1 var_22 = ~var_22_arg_0; [L104] SORT_1 var_23_arg_0 = var_21; [L105] SORT_1 var_23_arg_1 = var_22; [L106] EXPR var_23_arg_0 & var_23_arg_1 [L106] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L107] EXPR var_23 & mask_SORT_1 [L107] var_23 = var_23 & mask_SORT_1 [L108] SORT_1 bad_24_arg_0 = var_23; [L109] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, 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=7occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 [2023-12-02 13:48:16,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh --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 64bit --witnessprinter.graph.data.programhash a85f457a181079a0b5789d13788d6c7347ae80776212b7f747148ec13e9b6cf1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:48:18,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:48:18,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 13:48:18,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:48:18,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:48:18,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:48:18,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:48:18,113 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:48:18,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:48:18,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:48:18,115 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:48:18,115 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:48:18,116 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:48:18,116 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:48:18,117 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:48:18,117 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:48:18,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:48:18,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:48:18,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:48:18,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:48:18,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:48:18,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:48:18,121 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:48:18,122 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:48:18,122 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:48:18,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:48:18,123 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:48:18,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:48:18,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:48:18,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:48:18,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:48:18,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:48:18,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:48:18,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:48:18,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:48:18,127 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:48:18,127 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:18,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:48:18,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:48:18,127 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:48:18,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:48:18,128 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_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a85f457a181079a0b5789d13788d6c7347ae80776212b7f747148ec13e9b6cf1 [2023-12-02 13:48:18,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:48:18,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:48:18,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:48:18,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:48:18,432 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:48:18,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c [2023-12-02 13:48:21,148 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:48:21,343 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:48:21,343 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c [2023-12-02 13:48:21,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/data/824a67a37/4ce828569f8f43749cb4e3cb82057550/FLAGbe8e413cf [2023-12-02 13:48:21,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/data/824a67a37/4ce828569f8f43749cb4e3cb82057550 [2023-12-02 13:48:21,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:48:21,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:48:21,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:48:21,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:48:21,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:48:21,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c81af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21, skipping insertion in model container [2023-12-02 13:48:21,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,400 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:48:21,528 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_8d46e90b-7bc0-4b41-9487-b74366cf2623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c[1259,1272] [2023-12-02 13:48:21,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:48:21,579 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:48:21,589 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_8d46e90b-7bc0-4b41-9487-b74366cf2623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p04.c[1259,1272] [2023-12-02 13:48:21,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:48:21,629 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:48:21,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21 WrapperNode [2023-12-02 13:48:21,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:48:21,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:48:21,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:48:21,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:48:21,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,667 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 138 [2023-12-02 13:48:21,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:48:21,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:48:21,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:48:21,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:48:21,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:48:21,700 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:48:21,700 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:48:21,700 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:48:21,701 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (1/1) ... [2023-12-02 13:48:21,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:48:21,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:48:21,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:48:21,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:48:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:48:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:48:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:48:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:48:21,863 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:48:21,865 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:48:22,010 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:48:22,051 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:48:22,051 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:48:22,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:48:22 BoogieIcfgContainer [2023-12-02 13:48:22,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:48:22,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:48:22,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:48:22,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:48:22,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:48:21" (1/3) ... [2023-12-02 13:48:22,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e71163a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:48:22, skipping insertion in model container [2023-12-02 13:48:22,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:48:21" (2/3) ... [2023-12-02 13:48:22,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e71163a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:48:22, skipping insertion in model container [2023-12-02 13:48:22,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:48:22" (3/3) ... [2023-12-02 13:48:22,061 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p04.c [2023-12-02 13:48:22,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:48:22,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:48:22,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:48:22,122 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;@21dd5fd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:48:22,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:48:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:22,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:48:22,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:22,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:48:22,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:48:22,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 13:48:22,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:48:22,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425628401] [2023-12-02 13:48:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:22,148 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 [2023-12-02 13:48:22,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:48:22,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:48:22,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:48:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:22,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 13:48:22,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:22,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:48:22,479 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:48:22,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425628401] [2023-12-02 13:48:22,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425628401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:48:22,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:48:22,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:48:22,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687907344] [2023-12-02 13:48:22,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:48:22,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:48:22,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:48:22,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:48:22,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:48:22,516 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:22,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:48:22,567 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 13:48:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:48:22,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 13:48:22,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:48:22,576 INFO L225 Difference]: With dead ends: 16 [2023-12-02 13:48:22,577 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 13:48:22,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:48:22,583 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:48:22,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:48:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 13:48:22,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 13:48:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 13:48:22,613 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 13:48:22,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:48:22,624 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 13:48:22,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 13:48:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 13:48:22,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:22,625 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 13:48:22,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:48:22,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:48:22,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:48:22,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 13:48:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:48:22,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725510144] [2023-12-02 13:48:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:22,829 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 [2023-12-02 13:48:22,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:48:22,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:48:22,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:48:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:22,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 13:48:22,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:23,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:23,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:23,769 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:48:23,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725510144] [2023-12-02 13:48:23,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725510144] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:23,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2030100519] [2023-12-02 13:48:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:23,771 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:23,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:48:23,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:48:23,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 13:48:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:23,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 13:48:23,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:24,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:24,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:24,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2030100519] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:24,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193460658] [2023-12-02 13:48:24,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:48:24,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:48:24,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:48:24,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:48:24,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:48:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:48:24,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 13:48:24,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:24,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:25,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:25,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193460658] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:25,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:48:25,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5, 4, 5, 5] total 10 [2023-12-02 13:48:25,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731959633] [2023-12-02 13:48:25,251 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:48:25,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 13:48:25,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:48:25,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 13:48:25,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:48:25,253 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:25,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:48:25,591 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-12-02 13:48:25,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 13:48:25,591 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 13:48:25,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:48:25,592 INFO L225 Difference]: With dead ends: 17 [2023-12-02 13:48:25,592 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 13:48:25,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-02 13:48:25,594 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:48:25,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:48:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 13:48:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-12-02 13:48:25,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-02 13:48:25,601 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2023-12-02 13:48:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:48:25,601 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-02 13:48:25,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-02 13:48:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 13:48:25,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:48:25,602 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-12-02 13:48:25,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 13:48:25,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 13:48:26,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:48:26,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:48:26,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:48:26,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:48:26,206 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 2 times [2023-12-02 13:48:26,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:48:26,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359025875] [2023-12-02 13:48:26,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 13:48:26,208 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 [2023-12-02 13:48:26,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:48:26,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:48:26,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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 (6)] Waiting until timeout for monitored process [2023-12-02 13:48:26,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 13:48:26,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:48:26,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-02 13:48:26,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:26,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:30,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:48:30,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359025875] [2023-12-02 13:48:30,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359025875] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:30,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [660272533] [2023-12-02 13:48:30,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 13:48:30,349 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:48:30,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:48:30,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:48:30,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 13:48:30,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 13:48:30,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:48:30,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-02 13:48:30,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:30,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:32,243 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:48:32,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [660272533] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:32,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498935602] [2023-12-02 13:48:32,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 13:48:32,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:48:32,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:48:32,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:48:32,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 13:48:32,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 13:48:32,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:48:32,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 76 conjunts are in the unsatisfiable core [2023-12-02 13:48:32,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:48:33,545 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:48:33,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:48:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 13:48:43,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498935602] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:48:43,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:48:43,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 9, 8] total 28 [2023-12-02 13:48:43,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834808289] [2023-12-02 13:48:43,584 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:48:43,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-02 13:48:43,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:48:43,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-02 13:48:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=661, Unknown=1, NotChecked=0, Total=812 [2023-12-02 13:48:43,586 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 29 states, 29 states have (on average 2.0) internal successors, (58), 28 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:44,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:48:44,275 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2023-12-02 13:48:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 13:48:44,276 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.0) internal successors, (58), 28 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-02 13:48:44,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:48:44,276 INFO L225 Difference]: With dead ends: 18 [2023-12-02 13:48:44,277 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 13:48:44,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=330, Invalid=1075, Unknown=1, NotChecked=0, Total=1406 [2023-12-02 13:48:44,279 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:48:44,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 0 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:48:44,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 13:48:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 13:48:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:44,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 13:48:44,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-12-02 13:48:44,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:48:44,281 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 13:48:44,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.0) internal successors, (58), 28 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:48:44,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 13:48:44,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 13:48:44,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:48:44,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 13:48:44,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 13:48:44,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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 (6)] Ended with exit code 0 [2023-12-02 13:48:44,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:48:44,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 13:48:45,008 INFO L899 garLoopResultBuilder]: For program point L68-3(lines 68 125) no Hoare annotation was computed. [2023-12-02 13:48:45,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 13:48:45,008 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-12-02 13:48:45,008 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-12-02 13:48:45,008 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-12-02 13:48:45,008 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 13:48:45,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-12-02 13:48:45,009 INFO L895 garLoopResultBuilder]: At program point L68-2(lines 68 125) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~var_16~0#1| (_ bv0 8)) (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_7~0#1|) (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_14~0#1|) (= |ULTIMATE.start_main_~var_8~0#1| (_ bv0 8)) (= (_ bv4 8) |ULTIMATE.start_main_~var_52~0#1|) (exists ((|ULTIMATE.start_main_~var_54_arg_2~0#1| (_ BitVec 8))) (= |ULTIMATE.start_main_~state_9~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_54_arg_2~0#1|))) (_ bv7 32))))) (let ((.cse0 ((_ zero_extend 24) |ULTIMATE.start_main_~state_9~0#1|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse0 (_ bv2 32)))) (_ bv1 32)))) (_ bv0 32)) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv3 32) ((_ zero_extend 24) ((_ extract 7 0) .cse0))))) (_ bv0 32)))) (= (_ bv1 8) |ULTIMATE.start_main_~var_50~0#1|) (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 8)) (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) [2023-12-02 13:48:45,012 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-12-02 13:48:45,014 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:48:45,029 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_54_arg_2~0#1 : bv8 :: ~state_9~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_54_arg_2~0#1)[7:0]), 7bv32)[7:0]) could not be translated [2023-12-02 13:48:45,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:48:45 BoogieIcfgContainer [2023-12-02 13:48:45,031 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:48:45,031 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:48:45,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:48:45,032 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:48:45,032 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:48:22" (3/4) ... [2023-12-02 13:48:45,034 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 13:48:45,042 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 13:48:45,043 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 13:48:45,043 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 13:48:45,043 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:48:45,140 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 13:48:45,140 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 13:48:45,141 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:48:45,141 INFO L158 Benchmark]: Toolchain (without parser) took 23774.46ms. Allocated memory was 79.7MB in the beginning and 283.1MB in the end (delta: 203.4MB). Free memory was 55.4MB in the beginning and 179.0MB in the end (delta: -123.6MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2023-12-02 13:48:45,142 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 56.2MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:48:45,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.07ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 42.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:48:45,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.60ms. Allocated memory is still 79.7MB. Free memory was 42.3MB in the beginning and 40.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:48:45,143 INFO L158 Benchmark]: Boogie Preprocessor took 31.01ms. Allocated memory is still 79.7MB. Free memory was 40.4MB in the beginning and 39.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:48:45,143 INFO L158 Benchmark]: RCFGBuilder took 352.54ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 39.0MB in the beginning and 77.0MB in the end (delta: -38.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:48:45,143 INFO L158 Benchmark]: TraceAbstraction took 22975.56ms. Allocated memory was 111.1MB in the beginning and 283.1MB in the end (delta: 172.0MB). Free memory was 76.2MB in the beginning and 185.3MB in the end (delta: -109.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2023-12-02 13:48:45,144 INFO L158 Benchmark]: Witness Printer took 109.36ms. Allocated memory is still 283.1MB. Free memory was 185.3MB in the beginning and 179.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 13:48:45,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 56.2MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.07ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 42.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.60ms. Allocated memory is still 79.7MB. Free memory was 42.3MB in the beginning and 40.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.01ms. Allocated memory is still 79.7MB. Free memory was 40.4MB in the beginning and 39.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.54ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 39.0MB in the beginning and 77.0MB in the end (delta: -38.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 22975.56ms. Allocated memory was 111.1MB in the beginning and 283.1MB in the end (delta: 172.0MB). Free memory was 76.2MB in the beginning and 185.3MB in the end (delta: -109.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. * Witness Printer took 109.36ms. Allocated memory is still 283.1MB. Free memory was 185.3MB in the beginning and 179.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_54_arg_2~0#1 : bv8 :: ~state_9~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_54_arg_2~0#1)[7:0]), 7bv32)[7:0]) could not be translated * 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.9s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 4 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 66 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 6 NumberOfFragments, 61 HoareAnnotationTreeSize, 1 FomulaSimplifications, 105 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 277 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 111 ConstructedInterpolants, 49 QuantifiedInterpolants, 31632 SizeOfPredicates, 307 NumberOfNonLiveVariables, 779 ConjunctsInSsa, 308 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 5/102 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: ((((((((((1 == mask_SORT_1) && (var_16 == 0)) && (7 == mask_SORT_7)) && (3 == mask_SORT_14)) && (var_8 == 0)) && (4 == var_52)) && ((((((state_9 >> 2) & 127) & 1) & 127) == 0) || (((3 & (state_9 & 127)) & 127) == 0))) && (1 == var_50)) && (var_12 == 0)) && (1 == var_21)) RESULT: Ultimate proved your program to be correct! [2023-12-02 13:48:45,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46e90b-7bc0-4b41-9487-b74366cf2623/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE