./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.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_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91 --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 ad777bd82b2fbfc07486a835bf99ca2e475906af4a3b134d048b1c18acbc93b4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:08:13,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:08:13,581 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:08:13,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:08:13,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:08:13,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:08:13,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:08:13,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:08:13,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:08:13,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:08:13,639 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:08:13,640 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:08:13,641 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:08:13,642 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:08:13,643 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:08:13,643 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:08:13,644 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:08:13,644 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:08:13,645 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:08:13,646 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:08:13,646 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:08:13,647 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:08:13,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:08:13,650 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:08:13,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:08:13,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:08:13,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:08:13,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:08:13,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:08:13,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:08:13,654 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:08:13,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:08:13,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:08:13,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:08:13,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:13,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:08:13,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:08:13,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:08:13,657 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:08:13,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:08:13,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:08:13,658 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:08:13,658 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:08:13,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:08:13,659 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_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad777bd82b2fbfc07486a835bf99ca2e475906af4a3b134d048b1c18acbc93b4 [2023-11-25 00:08:13,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:08:13,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:08:13,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:08:13,994 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:08:13,995 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:08:13,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c [2023-11-25 00:08:17,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:08:17,536 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:08:17,536 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c [2023-11-25 00:08:17,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/data/0dbf0de18/ef1917de62804490bb11c24d79f37107/FLAGb544370c8 [2023-11-25 00:08:17,580 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/data/0dbf0de18/ef1917de62804490bb11c24d79f37107 [2023-11-25 00:08:17,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:08:17,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:08:17,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:17,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:08:17,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:08:17,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:17" (1/1) ... [2023-11-25 00:08:17,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d638e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:17, skipping insertion in model container [2023-11-25 00:08:17,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:17" (1/1) ... [2023-11-25 00:08:17,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:08:17,892 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_f72a4b64-5169-4ae6-9442-3931128cff89/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c[1259,1272] [2023-11-25 00:08:18,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:18,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:08:18,346 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_f72a4b64-5169-4ae6-9442-3931128cff89/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c[1259,1272] [2023-11-25 00:08:18,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:18,589 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:08:18,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18 WrapperNode [2023-11-25 00:08:18,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:18,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:18,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:08:18,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:08:18,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:18,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,058 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2447 [2023-11-25 00:08:19,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:19,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:08:19,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:08:19,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:08:19,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:08:19,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:08:19,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:08:19,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:08:19,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (1/1) ... [2023-11-25 00:08:19,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:19,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:08:19,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:08:19,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:08:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:08:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:08:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:08:19,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:08:19,961 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:08:19,964 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:08:22,334 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:08:26,089 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:08:26,090 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:08:26,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:26 BoogieIcfgContainer [2023-11-25 00:08:26,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:08:26,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:08:26,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:08:26,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:08:26,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:08:17" (1/3) ... [2023-11-25 00:08:26,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ec072a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:26, skipping insertion in model container [2023-11-25 00:08:26,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:18" (2/3) ... [2023-11-25 00:08:26,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ec072a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:26, skipping insertion in model container [2023-11-25 00:08:26,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:26" (3/3) ... [2023-11-25 00:08:26,111 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p11.c [2023-11-25 00:08:26,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:08:26,136 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:08:26,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:08:26,213 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;@599e3df4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:08:26,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:08:26,220 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) [2023-11-25 00:08:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-25 00:08:26,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:26,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-25 00:08:26,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:08:26,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:26,239 INFO L85 PathProgramCache]: Analyzing trace with hash 72408491, now seen corresponding path program 1 times [2023-11-25 00:08:26,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:08:26,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124721579] [2023-11-25 00:08:26,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:26,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:08:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:08:27,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:08:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:08:27,633 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:08:27,636 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:08:27,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:08:27,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:08:27,645 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:08:27,649 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:08:27,684 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-25 00:08:27,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:08:27 BoogieIcfgContainer [2023-11-25 00:08:27,706 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:08:27,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:08:27,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:08:27,709 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:08:27,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:26" (3/4) ... [2023-11-25 00:08:27,714 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:08:27,715 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:08:27,717 INFO L158 Benchmark]: Toolchain (without parser) took 10131.28ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 83.5MB in the beginning and 231.7MB in the end (delta: -148.2MB). Peak memory consumption was 339.3MB. Max. memory is 16.1GB. [2023-11-25 00:08:27,718 INFO L158 Benchmark]: CDTParser took 1.38ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 105.1MB in the end (delta: 34.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:08:27,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 999.07ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 83.5MB in the beginning and 122.0MB in the end (delta: -38.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2023-11-25 00:08:27,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 467.82ms. Allocated memory is still 184.5MB. Free memory was 121.0MB in the beginning and 112.9MB in the end (delta: 8.1MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2023-11-25 00:08:27,726 INFO L158 Benchmark]: Boogie Preprocessor took 470.34ms. Allocated memory was 184.5MB in the beginning and 304.1MB in the end (delta: 119.5MB). Free memory was 112.9MB in the beginning and 229.9MB in the end (delta: -117.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2023-11-25 00:08:27,728 INFO L158 Benchmark]: RCFGBuilder took 6562.02ms. Allocated memory was 304.1MB in the beginning and 629.1MB in the end (delta: 325.1MB). Free memory was 229.9MB in the beginning and 350.2MB in the end (delta: -120.2MB). Peak memory consumption was 246.8MB. Max. memory is 16.1GB. [2023-11-25 00:08:27,729 INFO L158 Benchmark]: TraceAbstraction took 1607.58ms. Allocated memory is still 629.1MB. Free memory was 349.1MB in the beginning and 232.8MB in the end (delta: 116.4MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. [2023-11-25 00:08:27,730 INFO L158 Benchmark]: Witness Printer took 7.59ms. Allocated memory is still 629.1MB. Free memory was 232.8MB in the beginning and 231.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:08:27,740 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 105.1MB in the end (delta: 34.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 999.07ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 83.5MB in the beginning and 122.0MB in the end (delta: -38.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 467.82ms. Allocated memory is still 184.5MB. Free memory was 121.0MB in the beginning and 112.9MB in the end (delta: 8.1MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 470.34ms. Allocated memory was 184.5MB in the beginning and 304.1MB in the end (delta: 119.5MB). Free memory was 112.9MB in the beginning and 229.9MB in the end (delta: -117.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * RCFGBuilder took 6562.02ms. Allocated memory was 304.1MB in the beginning and 629.1MB in the end (delta: 325.1MB). Free memory was 229.9MB in the beginning and 350.2MB in the end (delta: -120.2MB). Peak memory consumption was 246.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1607.58ms. Allocated memory is still 629.1MB. Free memory was 349.1MB in the beginning and 232.8MB in the end (delta: 116.4MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. * Witness Printer took 7.59ms. Allocated memory is still 629.1MB. Free memory was 232.8MB in the beginning and 231.7MB in the end (delta: 1.1MB). 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 186, overapproximation of bitwiseAnd at line 148. 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_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 3); [L36] const SORT_10 msb_SORT_10 = (SORT_10)1 << (3 - 1); [L38] const SORT_18 mask_SORT_18 = (SORT_18)-1 >> (sizeof(SORT_18) * 8 - 2); [L39] const SORT_18 msb_SORT_18 = (SORT_18)1 << (2 - 1); [L41] const SORT_84 mask_SORT_84 = (SORT_84)-1 >> (sizeof(SORT_84) * 8 - 4); [L42] const SORT_84 msb_SORT_84 = (SORT_84)1 << (4 - 1); [L44] const SORT_148 mask_SORT_148 = (SORT_148)-1 >> (sizeof(SORT_148) * 8 - 32); [L45] const SORT_148 msb_SORT_148 = (SORT_148)1 << (32 - 1); [L47] const SORT_5 var_7 = 0; [L48] const SORT_10 var_12 = 3; [L49] const SORT_10 var_15 = 1; [L50] const SORT_10 var_24 = 0; [L51] const SORT_1 var_28 = 0; [L52] const SORT_3 var_30 = 0; [L53] const SORT_1 var_38 = 1; [L54] const SORT_10 var_62 = 2; [L55] const SORT_10 var_70 = 4; [L56] const SORT_10 var_72 = 5; [L57] const SORT_10 var_100 = 7; [L58] const SORT_10 var_105 = 6; [L59] const SORT_148 var_150 = 0; [L60] const SORT_3 var_165 = 2; [L61] const SORT_3 var_187 = 31; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_176; [L67] SORT_3 input_177; [L68] SORT_3 input_178; [L69] SORT_3 input_186; [L70] SORT_3 input_195; [L71] SORT_3 input_196; [L72] SORT_3 input_197; [L73] SORT_3 input_200; [L74] SORT_3 input_219; [L75] SORT_3 input_220; [L76] SORT_3 input_221; [L77] SORT_3 input_224; [L78] SORT_3 input_226; [L79] SORT_18 input_240; [L80] SORT_18 input_241; [L81] SORT_18 input_242; [L83] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 [L83] SORT_5 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L84] SORT_10 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L85] SORT_3 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L86] SORT_3 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L87] SORT_3 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L88] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L89] SORT_3 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L90] SORT_3 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L91] SORT_3 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L92] SORT_3 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L93] SORT_3 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L94] SORT_3 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L95] SORT_3 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L97] SORT_5 init_9_arg_1 = var_7; [L98] state_8 = init_9_arg_1 [L99] SORT_10 init_26_arg_1 = var_24; [L100] state_25 = init_26_arg_1 [L101] SORT_3 init_32_arg_1 = var_30; [L102] state_31 = init_32_arg_1 [L103] SORT_3 init_43_arg_1 = var_30; [L104] state_42 = init_43_arg_1 [L105] SORT_3 init_45_arg_1 = var_30; [L106] state_44 = init_45_arg_1 [L107] SORT_1 init_47_arg_1 = var_28; [L108] state_46 = init_47_arg_1 [L109] SORT_3 init_49_arg_1 = var_30; [L110] state_48 = init_49_arg_1 [L111] SORT_3 init_51_arg_1 = var_30; [L112] state_50 = init_51_arg_1 [L113] SORT_3 init_53_arg_1 = var_30; [L114] state_52 = init_53_arg_1 [L115] SORT_3 init_55_arg_1 = var_30; [L116] state_54 = init_55_arg_1 [L117] SORT_3 init_57_arg_1 = var_30; [L118] state_56 = init_57_arg_1 [L119] SORT_3 init_59_arg_1 = var_30; [L120] state_58 = init_59_arg_1 [L121] SORT_3 init_61_arg_1 = var_30; [L122] state_60 = init_61_arg_1 VAL [init_26_arg_1=0, init_32_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_9_arg_1=0, mask_SORT_10=7, mask_SORT_148=4294967295, mask_SORT_18=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_5=4095, mask_SORT_84=15, msb_SORT_10=4, msb_SORT_148=2147483648, msb_SORT_18=2, msb_SORT_1=1, msb_SORT_3=16, msb_SORT_5=2048, msb_SORT_84=8, state_25=0, state_31=0, state_42=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_60=0, state_8=0, var_100=7, var_105=6, var_12=3, var_150=0, var_15=1, var_165=2, var_187=31, var_24=0, var_28=0, var_30=0, var_38=1, var_62=2, var_70=4, var_72=5, var_7=0] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_176 = __VERIFIER_nondet_uchar() [L129] input_177 = __VERIFIER_nondet_uchar() [L130] input_178 = __VERIFIER_nondet_uchar() [L131] input_186 = __VERIFIER_nondet_uchar() [L132] input_195 = __VERIFIER_nondet_uchar() [L133] input_196 = __VERIFIER_nondet_uchar() [L134] input_197 = __VERIFIER_nondet_uchar() [L135] input_200 = __VERIFIER_nondet_uchar() [L136] input_219 = __VERIFIER_nondet_uchar() [L137] input_220 = __VERIFIER_nondet_uchar() [L138] input_221 = __VERIFIER_nondet_uchar() [L139] input_224 = __VERIFIER_nondet_uchar() [L140] input_226 = __VERIFIER_nondet_uchar() [L141] input_240 = __VERIFIER_nondet_uchar() [L142] input_241 = __VERIFIER_nondet_uchar() [L143] input_242 = __VERIFIER_nondet_uchar() [L146] SORT_5 var_11_arg_0 = state_8; [L147] SORT_10 var_11 = var_11_arg_0 >> 9; [L148] EXPR var_11 & mask_SORT_10 [L148] var_11 = var_11 & mask_SORT_10 [L149] SORT_10 var_13_arg_0 = var_11; [L150] SORT_10 var_13_arg_1 = var_12; [L151] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L152] SORT_5 var_14_arg_0 = state_8; [L153] SORT_10 var_14 = var_14_arg_0 >> 0; [L154] EXPR var_14 & mask_SORT_10 [L154] var_14 = var_14 & mask_SORT_10 [L155] SORT_10 var_16_arg_0 = var_14; [L156] SORT_10 var_16_arg_1 = var_15; [L157] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L158] SORT_1 var_17_arg_0 = var_13; [L159] SORT_1 var_17_arg_1 = var_16; [L160] EXPR var_17_arg_0 & var_17_arg_1 [L160] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L161] SORT_5 var_19_arg_0 = state_8; [L162] SORT_18 var_19 = var_19_arg_0 >> 7; [L163] EXPR var_19 & mask_SORT_18 [L163] var_19 = var_19 & mask_SORT_18 [L164] SORT_5 var_20_arg_0 = state_8; [L165] SORT_18 var_20 = var_20_arg_0 >> 5; [L166] EXPR var_20 & mask_SORT_18 [L166] var_20 = var_20 & mask_SORT_18 [L167] SORT_18 var_21_arg_0 = var_19; [L168] SORT_18 var_21_arg_1 = var_20; [L169] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L170] SORT_1 var_22_arg_0 = var_17; [L171] SORT_1 var_22_arg_1 = var_21; [L172] EXPR var_22_arg_0 & var_22_arg_1 [L172] SORT_1 var_22 = var_22_arg_0 & var_22_arg_1; [L173] SORT_1 var_23_arg_0 = var_22; [L174] SORT_1 var_23 = ~var_23_arg_0; [L175] SORT_10 var_27_arg_0 = state_25; [L176] SORT_1 var_27 = var_27_arg_0 >> 2; [L177] EXPR var_27 & mask_SORT_1 [L177] var_27 = var_27 & mask_SORT_1 [L178] SORT_1 var_29_arg_0 = var_27; [L179] SORT_1 var_29_arg_1 = var_28; [L180] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L181] SORT_3 var_33_arg_0 = state_31; [L182] SORT_3 var_33_arg_1 = var_30; [L183] SORT_1 var_33 = var_33_arg_0 == var_33_arg_1; [L184] SORT_1 var_34_arg_0 = var_29; [L185] SORT_1 var_34_arg_1 = var_33; [L186] EXPR var_34_arg_0 | var_34_arg_1 [L186] SORT_1 var_34 = var_34_arg_0 | var_34_arg_1; [L187] SORT_1 var_35_arg_0 = var_23; [L188] SORT_1 var_35_arg_1 = var_34; [L189] EXPR var_35_arg_0 | var_35_arg_1 [L189] SORT_1 var_35 = var_35_arg_0 | var_35_arg_1; [L190] SORT_1 var_39_arg_0 = var_35; [L191] SORT_1 var_39 = ~var_39_arg_0; [L192] SORT_1 var_40_arg_0 = var_38; [L193] SORT_1 var_40_arg_1 = var_39; [L194] EXPR var_40_arg_0 & var_40_arg_1 [L194] SORT_1 var_40 = var_40_arg_0 & var_40_arg_1; [L195] EXPR var_40 & mask_SORT_1 [L195] var_40 = var_40 & mask_SORT_1 [L196] SORT_1 bad_41_arg_0 = var_40; [L197] CALL __VERIFIER_assert(!(bad_41_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: 1.5s, 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, 0.8s 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 [2023-11-25 00:08:27,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/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 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_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91 --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 ad777bd82b2fbfc07486a835bf99ca2e475906af4a3b134d048b1c18acbc93b4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:08:30,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:08:30,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-25 00:08:30,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:08:30,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:08:30,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:08:30,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:08:30,783 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:08:30,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:08:30,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:08:30,786 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:08:30,787 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:08:30,788 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:08:30,788 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:08:30,789 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:08:30,790 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:08:30,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:08:30,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:08:30,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:08:30,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:08:30,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:08:30,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:08:30,797 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:08:30,798 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:08:30,798 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:08:30,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:08:30,799 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:08:30,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:08:30,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:08:30,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:08:30,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:08:30,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:30,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:08:30,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:08:30,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:08:30,804 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:08:30,804 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:08:30,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:08:30,805 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:08:30,805 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:08:30,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:08:30,806 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_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad777bd82b2fbfc07486a835bf99ca2e475906af4a3b134d048b1c18acbc93b4 [2023-11-25 00:08:31,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:08:31,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:08:31,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:08:31,314 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:08:31,315 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:08:31,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c [2023-11-25 00:08:34,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:08:34,991 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:08:34,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c [2023-11-25 00:08:35,013 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/data/f98e284c0/cce9a16e6d94411e9dd294e982ddafe7/FLAG89916aa89 [2023-11-25 00:08:35,032 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/data/f98e284c0/cce9a16e6d94411e9dd294e982ddafe7 [2023-11-25 00:08:35,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:08:35,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:08:35,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:35,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:08:35,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:08:35,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:35,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b8fe85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35, skipping insertion in model container [2023-11-25 00:08:35,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:35,133 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:08:35,363 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_f72a4b64-5169-4ae6-9442-3931128cff89/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c[1259,1272] [2023-11-25 00:08:35,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:35,712 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:08:35,724 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_f72a4b64-5169-4ae6-9442-3931128cff89/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p11.c[1259,1272] [2023-11-25 00:08:35,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:35,865 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:08:35,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35 WrapperNode [2023-11-25 00:08:35,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:35,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:35,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:08:35,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:08:35,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:35,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,030 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1093 [2023-11-25 00:08:36,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:36,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:08:36,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:08:36,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:08:36,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:08:36,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:08:36,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:08:36,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:08:36,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (1/1) ... [2023-11-25 00:08:36,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:36,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:08:36,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:08:36,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:08:36,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:08:36,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:08:36,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:08:36,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:08:36,532 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:08:36,534 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:08:38,113 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:08:38,209 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:08:38,210 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:08:38,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:38 BoogieIcfgContainer [2023-11-25 00:08:38,211 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:08:38,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:08:38,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:08:38,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:08:38,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:08:35" (1/3) ... [2023-11-25 00:08:38,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3131ca97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:38, skipping insertion in model container [2023-11-25 00:08:38,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:35" (2/3) ... [2023-11-25 00:08:38,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3131ca97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:38, skipping insertion in model container [2023-11-25 00:08:38,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:38" (3/3) ... [2023-11-25 00:08:38,224 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p11.c [2023-11-25 00:08:38,246 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:08:38,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:08:38,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:08:38,317 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;@25b66fff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:08:38,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:08:38,324 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) [2023-11-25 00:08:38,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-25 00:08:38,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:38,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-25 00:08:38,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:08:38,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:38,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-25 00:08:38,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:08:38,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072316859] [2023-11-25 00:08:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:38,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:38,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:08:38,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:08:38,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-25 00:08:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:38,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-25 00:08:38,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:08:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:38,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:08:38,942 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:08:38,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072316859] [2023-11-25 00:08:38,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072316859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:08:38,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:08:38,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:08:38,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470907830] [2023-11-25 00:08:38,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:08:38,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:08:38,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:08:38,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:08:38,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:08:38,990 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) [2023-11-25 00:08:39,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:08:39,248 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-25 00:08:39,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:08:39,251 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 [2023-11-25 00:08:39,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:08:39,259 INFO L225 Difference]: With dead ends: 16 [2023-11-25 00:08:39,259 INFO L226 Difference]: Without dead ends: 9 [2023-11-25 00:08:39,262 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 [2023-11-25 00:08:39,266 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:08:39,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:08:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-25 00:08:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-25 00:08:39,296 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) [2023-11-25 00:08:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-25 00:08:39,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-25 00:08:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:08:39,299 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-25 00:08:39,299 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) [2023-11-25 00:08:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-25 00:08:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:08:39,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:39,300 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-25 00:08:39,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:08:39,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:39,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:08:39,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:39,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-25 00:08:39,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:08:39,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454560571] [2023-11-25 00:08:39,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:39,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:39,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:08:39,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:08:39,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-25 00:08:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:40,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-25 00:08:40,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:08:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:41,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:08:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:41,899 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:08:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454560571] [2023-11-25 00:08:41,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454560571] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:08:41,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2116716395] [2023-11-25 00:08:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:41,900 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-25 00:08:41,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-25 00:08:41,931 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-25 00:08:41,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-25 00:08:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:43,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-25 00:08:43,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:08:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:43,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:08:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:43,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2116716395] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:08:43,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36495581] [2023-11-25 00:08:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:43,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:08:43,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:08:43,986 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:08:44,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-25 00:08:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:44,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-25 00:08:44,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:08:44,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:44,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:08:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:45,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36495581] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:08:45,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-25 00:08:45,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 6, 5] total 15 [2023-11-25 00:08:45,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717319306] [2023-11-25 00:08:45,886 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-25 00:08:45,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-25 00:08:45,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:08:45,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-25 00:08:45,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-25 00:08:45,894 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 16 states, 16 states have (on average 1.6875) internal successors, (27), 15 states have internal predecessors, (27), 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) [2023-11-25 00:08:47,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:08:47,365 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-11-25 00:08:47,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-25 00:08:47,366 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.6875) internal successors, (27), 15 states have internal predecessors, (27), 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 [2023-11-25 00:08:47,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:08:47,367 INFO L225 Difference]: With dead ends: 17 [2023-11-25 00:08:47,367 INFO L226 Difference]: Without dead ends: 15 [2023-11-25 00:08:47,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-11-25 00:08:47,369 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:08:47,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 19 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-25 00:08:47,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-25 00:08:47,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-11-25 00:08:47,376 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) [2023-11-25 00:08:47,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-25 00:08:47,377 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2023-11-25 00:08:47,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:08:47,377 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-25 00:08:47,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.6875) internal successors, (27), 15 states have internal predecessors, (27), 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) [2023-11-25 00:08:47,378 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-25 00:08:47,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-25 00:08:47,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:47,379 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-11-25 00:08:47,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/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)] Forceful destruction successful, exit code 0 [2023-11-25 00:08:47,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-25 00:08:47,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-25 00:08:47,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:08:47,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:08:47,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:47,992 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 2 times [2023-11-25 00:08:47,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:08:47,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069002725] [2023-11-25 00:08:47,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-25 00:08:47,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:08:47,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:08:47,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:08:47,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:08:56,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-25 00:08:56,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-25 00:08:56,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-25 00:08:56,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:08:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:08:57,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:09:00,908 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:09:00,909 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:09:00,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069002725] [2023-11-25 00:09:00,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069002725] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:09:00,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1043733960] [2023-11-25 00:09:00,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-25 00:09:00,910 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-25 00:09:00,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-25 00:09:00,913 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-25 00:09:00,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f72a4b64-5169-4ae6-9442-3931128cff89/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-25 00:09:03,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-25 00:09:03,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-25 00:09:03,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 62 conjunts are in the unsatisfiable core [2023-11-25 00:09:03,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:09:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:09:03,960 INFO L327 TraceCheckSpWp]: Computing backward predicates...