./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 85122204d036b5910f53a88c39bdbbba827d7c0829526b0f1f0f57c9eea94673 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:21,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:21,332 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:36:21,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:21,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:21,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:21,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:21,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:21,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:21,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:21,387 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:21,389 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:21,390 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:21,391 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:36:21,392 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:21,393 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:21,393 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:36:21,394 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:36:21,394 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:21,395 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:36:21,395 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:36:21,396 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:36:21,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:21,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:21,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:36:21,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:21,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:21,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:21,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:21,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:21,401 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:21,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:21,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:21,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:21,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:21,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:21,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:21,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:21,404 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:36:21,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:36:21,404 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:21,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:21,405 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:21,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:21,406 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_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85122204d036b5910f53a88c39bdbbba827d7c0829526b0f1f0f57c9eea94673 [2023-11-23 20:36:21,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:21,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:21,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:21,780 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:21,781 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:21,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2023-11-23 20:36:24,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:25,380 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:25,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2023-11-23 20:36:25,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/data/86d3c24e3/ac3fbe65aa084231a82a4249a6f3bf0a/FLAG719990751 [2023-11-23 20:36:25,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/data/86d3c24e3/ac3fbe65aa084231a82a4249a6f3bf0a [2023-11-23 20:36:25,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:25,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:25,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:25,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:25,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:25,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:25" (1/1) ... [2023-11-23 20:36:25,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a954a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:25, skipping insertion in model container [2023-11-23 20:36:25,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:25" (1/1) ... [2023-11-23 20:36:25,549 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:25,772 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_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1246,1259] [2023-11-23 20:36:26,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:26,348 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:26,360 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_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1246,1259] [2023-11-23 20:36:26,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:26,532 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:26,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26 WrapperNode [2023-11-23 20:36:26,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:26,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:26,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:26,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:26,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:26,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,117 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4176 [2023-11-23 20:36:27,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:27,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:27,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:27,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:27,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:27,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:27,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:27,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:27,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (1/1) ... [2023-11-23 20:36:27,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:27,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:27,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:27,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:36:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:28,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:28,470 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:28,472 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:31,675 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:39,006 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:39,006 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:36:39,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:39 BoogieIcfgContainer [2023-11-23 20:36:39,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:39,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:39,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:39,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:39,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:25" (1/3) ... [2023-11-23 20:36:39,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc05f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:39, skipping insertion in model container [2023-11-23 20:36:39,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:26" (2/3) ... [2023-11-23 20:36:39,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc05f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:39, skipping insertion in model container [2023-11-23 20:36:39,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:39" (3/3) ... [2023-11-23 20:36:39,022 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal179.c [2023-11-23 20:36:39,046 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:39,047 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:39,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:39,118 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;@3ec0059b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:39,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:39,124 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) [2023-11-23 20:36:39,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:36:39,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:39,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 20:36:39,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:39,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:39,142 INFO L85 PathProgramCache]: Analyzing trace with hash 102216204, now seen corresponding path program 1 times [2023-11-23 20:36:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:39,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132783205] [2023-11-23 20:36:39,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:39,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:36:40,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:36:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:36:40,499 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:36:40,502 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:36:40,503 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:36:40,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:36:40,511 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:36:40,516 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:36:40,583 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-23 20:36:40,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:36:40 BoogieIcfgContainer [2023-11-23 20:36:40,614 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:36:40,615 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:36:40,616 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:36:40,617 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:36:40,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:39" (3/4) ... [2023-11-23 20:36:40,620 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:36:40,622 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:36:40,623 INFO L158 Benchmark]: Toolchain (without parser) took 15180.03ms. Allocated memory was 144.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 95.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 387.7MB. Max. memory is 16.1GB. [2023-11-23 20:36:40,624 INFO L158 Benchmark]: CDTParser took 1.34ms. Allocated memory is still 119.5MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:40,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1087.75ms. Allocated memory is still 144.7MB. Free memory was 94.6MB in the beginning and 68.8MB in the end (delta: 25.8MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2023-11-23 20:36:40,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 584.37ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 68.8MB in the beginning and 93.1MB in the end (delta: -24.3MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2023-11-23 20:36:40,631 INFO L158 Benchmark]: Boogie Preprocessor took 731.90ms. Allocated memory is still 195.0MB. Free memory was 93.1MB in the beginning and 89.4MB in the end (delta: 3.7MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2023-11-23 20:36:40,633 INFO L158 Benchmark]: RCFGBuilder took 11157.72ms. Allocated memory was 195.0MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 88.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 581.7MB. Max. memory is 16.1GB. [2023-11-23 20:36:40,634 INFO L158 Benchmark]: TraceAbstraction took 1602.38ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 115.3MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. [2023-11-23 20:36:40,635 INFO L158 Benchmark]: Witness Printer took 7.22ms. Allocated memory is still 1.7GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:40,640 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34ms. Allocated memory is still 119.5MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1087.75ms. Allocated memory is still 144.7MB. Free memory was 94.6MB in the beginning and 68.8MB in the end (delta: 25.8MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 584.37ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 68.8MB in the beginning and 93.1MB in the end (delta: -24.3MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 731.90ms. Allocated memory is still 195.0MB. Free memory was 93.1MB in the beginning and 89.4MB in the end (delta: 3.7MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * RCFGBuilder took 11157.72ms. Allocated memory was 195.0MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 88.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 581.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1602.38ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 115.3MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. * Witness Printer took 7.22ms. Allocated memory is still 1.7GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 301, overapproximation of bitwiseAnd at line 217. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 2); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (2 - 1); [L35] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 3); [L36] const SORT_16 msb_SORT_16 = (SORT_16)1 << (3 - 1); [L38] const SORT_105 mask_SORT_105 = (SORT_105)-1 >> (sizeof(SORT_105) * 8 - 31); [L39] const SORT_105 msb_SORT_105 = (SORT_105)1 << (31 - 1); [L41] const SORT_1 var_63 = 0; [L42] const SORT_1 var_79 = 1; [L43] const SORT_9 var_83 = 0; [L44] const SORT_9 var_87 = 3; [L45] const SORT_9 var_95 = 2; [L46] const SORT_105 var_106 = 1618477056; [L47] const SORT_105 var_109 = 1618478076; [L48] const SORT_9 var_118 = 1; [L49] const SORT_16 var_195 = 0; [L50] const SORT_16 var_199 = 2; [L51] const SORT_16 var_201 = 4; [L52] const SORT_16 var_214 = 3; [L53] const SORT_16 var_274 = 5; [L54] const SORT_16 var_276 = 7; [L55] const SORT_16 var_289 = 6; [L56] const SORT_16 var_335 = 1; [L58] SORT_1 input_2; [L59] SORT_1 input_3; [L60] SORT_1 input_4; [L61] SORT_1 input_5; [L62] SORT_1 input_6; [L63] SORT_7 input_8; [L64] SORT_9 input_10; [L65] SORT_1 input_11; [L66] SORT_7 input_12; [L67] SORT_1 input_13; [L68] SORT_1 input_14; [L69] SORT_1 input_15; [L70] SORT_16 input_17; [L71] SORT_1 input_18; [L72] SORT_1 input_19; [L73] SORT_1 input_20; [L74] SORT_1 input_21; [L75] SORT_1 input_22; [L76] SORT_1 input_23; [L77] SORT_9 input_24; [L78] SORT_9 input_25; [L79] SORT_1 input_26; [L80] SORT_1 input_27; [L81] SORT_9 input_28; [L82] SORT_9 input_29; [L83] SORT_1 input_30; [L84] SORT_1 input_31; [L85] SORT_1 input_32; [L86] SORT_1 input_33; [L87] SORT_1 input_34; [L88] SORT_1 input_35; [L89] SORT_1 input_36; [L90] SORT_9 input_37; [L91] SORT_9 input_38; [L92] SORT_1 input_39; [L93] SORT_1 input_40; [L94] SORT_1 input_41; [L95] SORT_1 input_42; [L96] SORT_1 input_43; [L97] SORT_1 input_44; [L98] SORT_1 input_45; [L99] SORT_1 input_46; [L100] SORT_1 input_47; [L101] SORT_1 input_48; [L102] SORT_9 input_49; [L103] SORT_9 input_50; [L104] SORT_1 input_51; [L105] SORT_1 input_52; [L106] SORT_1 input_53; [L107] SORT_1 input_54; [L108] SORT_9 input_55; [L109] SORT_9 input_56; [L110] SORT_9 input_57; [L111] SORT_9 input_58; [L112] SORT_1 input_59; [L113] SORT_1 input_60; [L114] SORT_16 input_61; [L115] SORT_16 input_62; [L117] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L117] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L118] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L119] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L120] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L121] SORT_9 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L122] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L122] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L123] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L124] SORT_9 state_115 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L125] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L125] SORT_9 state_127 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L126] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L126] SORT_1 state_130 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L127] SORT_9 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L128] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L128] SORT_1 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L129] SORT_1 state_182 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L130] SORT_1 state_185 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16 [L131] SORT_16 state_196 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L132] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L132] SORT_1 state_261 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L133] SORT_1 state_264 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L134] SORT_1 state_313 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L135] SORT_9 state_397 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L136] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L136] SORT_1 state_401 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L137] SORT_1 state_408 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L138] SORT_9 state_415 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L139] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L139] SORT_9 state_426 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L140] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L140] SORT_1 state_429 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L141] SORT_9 state_434 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L142] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L142] SORT_1 state_441 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L143] SORT_1 state_472 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L144] SORT_1 state_475 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L145] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16 [L145] SORT_16 state_485 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L146] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L146] SORT_1 state_547 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L147] SORT_1 state_550 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L148] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L148] SORT_1 state_596 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L150] SORT_1 init_65_arg_1 = var_63; [L151] state_64 = init_65_arg_1 [L152] SORT_1 init_68_arg_1 = var_63; [L153] state_67 = init_68_arg_1 [L154] SORT_1 init_70_arg_1 = var_63; [L155] state_69 = init_70_arg_1 [L156] SORT_1 init_73_arg_1 = var_63; [L157] state_72 = init_73_arg_1 [L158] SORT_9 init_85_arg_1 = var_83; [L159] state_84 = init_85_arg_1 [L160] SORT_1 init_90_arg_1 = var_63; [L161] state_89 = init_90_arg_1 [L162] SORT_1 init_98_arg_1 = var_63; [L163] state_97 = init_98_arg_1 [L164] SORT_9 init_116_arg_1 = var_83; [L165] state_115 = init_116_arg_1 [L166] SORT_9 init_128_arg_1 = var_83; [L167] state_127 = init_128_arg_1 [L168] SORT_1 init_131_arg_1 = var_63; [L169] state_130 = init_131_arg_1 [L170] SORT_9 init_136_arg_1 = var_83; [L171] state_135 = init_136_arg_1 [L172] SORT_1 init_143_arg_1 = var_63; [L173] state_142 = init_143_arg_1 [L174] SORT_1 init_183_arg_1 = var_63; [L175] state_182 = init_183_arg_1 [L176] SORT_1 init_186_arg_1 = var_63; [L177] state_185 = init_186_arg_1 [L178] SORT_16 init_197_arg_1 = var_195; [L179] state_196 = init_197_arg_1 [L180] SORT_1 init_262_arg_1 = var_63; [L181] state_261 = init_262_arg_1 [L182] SORT_1 init_265_arg_1 = var_63; [L183] state_264 = init_265_arg_1 [L184] SORT_1 init_314_arg_1 = var_63; [L185] state_313 = init_314_arg_1 [L186] SORT_9 init_398_arg_1 = var_83; [L187] state_397 = init_398_arg_1 [L188] SORT_1 init_402_arg_1 = var_63; [L189] state_401 = init_402_arg_1 [L190] SORT_1 init_409_arg_1 = var_63; [L191] state_408 = init_409_arg_1 [L192] SORT_9 init_416_arg_1 = var_83; [L193] state_415 = init_416_arg_1 [L194] SORT_9 init_427_arg_1 = var_83; [L195] state_426 = init_427_arg_1 [L196] SORT_1 init_430_arg_1 = var_63; [L197] state_429 = init_430_arg_1 [L198] SORT_9 init_435_arg_1 = var_83; [L199] state_434 = init_435_arg_1 [L200] SORT_1 init_442_arg_1 = var_63; [L201] state_441 = init_442_arg_1 [L202] SORT_1 init_473_arg_1 = var_63; [L203] state_472 = init_473_arg_1 [L204] SORT_1 init_476_arg_1 = var_63; [L205] state_475 = init_476_arg_1 [L206] SORT_16 init_486_arg_1 = var_195; [L207] state_485 = init_486_arg_1 [L208] SORT_1 init_548_arg_1 = var_63; [L209] state_547 = init_548_arg_1 [L210] SORT_1 init_551_arg_1 = var_63; [L211] state_550 = init_551_arg_1 [L212] SORT_1 init_597_arg_1 = var_63; [L213] state_596 = init_597_arg_1 VAL [init_116_arg_1=0, init_128_arg_1=0, init_131_arg_1=0, init_136_arg_1=0, init_143_arg_1=0, init_183_arg_1=0, init_186_arg_1=0, init_197_arg_1=0, init_262_arg_1=0, init_265_arg_1=0, init_314_arg_1=0, init_398_arg_1=0, init_402_arg_1=0, init_409_arg_1=0, init_416_arg_1=0, init_427_arg_1=0, init_430_arg_1=0, init_435_arg_1=0, init_442_arg_1=0, init_473_arg_1=0, init_476_arg_1=0, init_486_arg_1=0, init_548_arg_1=0, init_551_arg_1=0, init_597_arg_1=0, init_65_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_73_arg_1=0, init_85_arg_1=0, init_90_arg_1=0, init_98_arg_1=0, mask_SORT_105=2147483647, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_7=4294967295, mask_SORT_9=3, msb_SORT_105=1073741824, msb_SORT_16=4, msb_SORT_1=1, msb_SORT_7=2147483648, msb_SORT_9=2, state_115=0, state_127=0, state_130=0, state_135=0, state_142=0, state_182=0, state_185=0, state_196=0, state_261=0, state_264=0, state_313=0, state_397=0, state_401=0, state_408=0, state_415=0, state_426=0, state_429=0, state_434=0, state_441=0, state_472=0, state_475=0, state_485=0, state_547=0, state_550=0, state_596=0, state_64=0, state_67=0, state_69=0, state_72=0, state_84=0, state_89=0, state_97=0, var_106=1618477056, var_109=1618478076, var_118=1, var_195=0, var_199=2, var_201=4, var_214=3, var_274=5, var_276=7, var_289=6, var_335=1, var_63=0, var_79=1, var_83=0, var_87=3, var_95=2] [L216] input_2 = __VERIFIER_nondet_uchar() [L217] EXPR input_2 & mask_SORT_1 [L217] input_2 = input_2 & mask_SORT_1 [L218] input_3 = __VERIFIER_nondet_uchar() [L219] EXPR input_3 & mask_SORT_1 [L219] input_3 = input_3 & mask_SORT_1 [L220] input_4 = __VERIFIER_nondet_uchar() [L221] EXPR input_4 & mask_SORT_1 [L221] input_4 = input_4 & mask_SORT_1 [L222] input_5 = __VERIFIER_nondet_uchar() [L223] input_6 = __VERIFIER_nondet_uchar() [L224] input_8 = __VERIFIER_nondet_uint() [L225] EXPR input_8 & mask_SORT_7 [L225] input_8 = input_8 & mask_SORT_7 [L226] input_10 = __VERIFIER_nondet_uchar() [L227] input_11 = __VERIFIER_nondet_uchar() [L228] input_12 = __VERIFIER_nondet_uint() [L229] EXPR input_12 & mask_SORT_7 [L229] input_12 = input_12 & mask_SORT_7 [L230] input_13 = __VERIFIER_nondet_uchar() [L231] EXPR input_13 & mask_SORT_1 [L231] input_13 = input_13 & mask_SORT_1 [L232] input_14 = __VERIFIER_nondet_uchar() [L233] EXPR input_14 & mask_SORT_1 [L233] input_14 = input_14 & mask_SORT_1 [L234] input_15 = __VERIFIER_nondet_uchar() [L235] EXPR input_15 & mask_SORT_1 [L235] input_15 = input_15 & mask_SORT_1 [L236] input_17 = __VERIFIER_nondet_uchar() [L237] input_18 = __VERIFIER_nondet_uchar() [L238] input_19 = __VERIFIER_nondet_uchar() [L239] input_20 = __VERIFIER_nondet_uchar() [L240] input_21 = __VERIFIER_nondet_uchar() [L241] input_22 = __VERIFIER_nondet_uchar() [L242] input_23 = __VERIFIER_nondet_uchar() [L243] input_24 = __VERIFIER_nondet_uchar() [L244] input_25 = __VERIFIER_nondet_uchar() [L245] input_26 = __VERIFIER_nondet_uchar() [L246] input_27 = __VERIFIER_nondet_uchar() [L247] input_28 = __VERIFIER_nondet_uchar() [L248] input_29 = __VERIFIER_nondet_uchar() [L249] input_30 = __VERIFIER_nondet_uchar() [L250] input_31 = __VERIFIER_nondet_uchar() [L251] input_32 = __VERIFIER_nondet_uchar() [L252] input_33 = __VERIFIER_nondet_uchar() [L253] input_34 = __VERIFIER_nondet_uchar() [L254] input_35 = __VERIFIER_nondet_uchar() [L255] input_36 = __VERIFIER_nondet_uchar() [L256] input_37 = __VERIFIER_nondet_uchar() [L257] input_38 = __VERIFIER_nondet_uchar() [L258] input_39 = __VERIFIER_nondet_uchar() [L259] input_40 = __VERIFIER_nondet_uchar() [L260] input_41 = __VERIFIER_nondet_uchar() [L261] input_42 = __VERIFIER_nondet_uchar() [L262] input_43 = __VERIFIER_nondet_uchar() [L263] input_44 = __VERIFIER_nondet_uchar() [L264] input_45 = __VERIFIER_nondet_uchar() [L265] input_46 = __VERIFIER_nondet_uchar() [L266] input_47 = __VERIFIER_nondet_uchar() [L267] input_48 = __VERIFIER_nondet_uchar() [L268] input_49 = __VERIFIER_nondet_uchar() [L269] input_50 = __VERIFIER_nondet_uchar() [L270] input_51 = __VERIFIER_nondet_uchar() [L271] input_52 = __VERIFIER_nondet_uchar() [L272] input_53 = __VERIFIER_nondet_uchar() [L273] input_54 = __VERIFIER_nondet_uchar() [L274] input_55 = __VERIFIER_nondet_uchar() [L275] input_56 = __VERIFIER_nondet_uchar() [L276] input_57 = __VERIFIER_nondet_uchar() [L277] input_58 = __VERIFIER_nondet_uchar() [L278] input_59 = __VERIFIER_nondet_uchar() [L279] input_60 = __VERIFIER_nondet_uchar() [L280] input_61 = __VERIFIER_nondet_uchar() [L281] input_62 = __VERIFIER_nondet_uchar() [L284] SORT_1 var_66_arg_0 = state_64; [L285] SORT_1 var_66 = ~var_66_arg_0; [L286] SORT_1 var_71_arg_0 = state_69; [L287] SORT_1 var_71_arg_1 = state_67; [L288] SORT_1 var_71_arg_2 = input_26; [L289] SORT_1 var_71 = var_71_arg_0 ? var_71_arg_1 : var_71_arg_2; [L290] EXPR var_71 & mask_SORT_1 [L290] var_71 = var_71 & mask_SORT_1 [L291] SORT_1 var_74_arg_0 = state_69; [L292] SORT_1 var_74_arg_1 = state_72; [L293] SORT_1 var_74_arg_2 = input_26; [L294] SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L295] EXPR var_74 & mask_SORT_1 [L295] var_74 = var_74 & mask_SORT_1 [L296] SORT_1 var_75_arg_0 = var_71; [L297] SORT_1 var_75_arg_1 = var_74; [L298] SORT_1 var_75 = var_75_arg_0 == var_75_arg_1; [L299] SORT_1 var_76_arg_0 = var_66; [L300] SORT_1 var_76_arg_1 = var_75; [L301] EXPR var_76_arg_0 | var_76_arg_1 [L301] SORT_1 var_76 = var_76_arg_0 | var_76_arg_1; [L302] SORT_1 var_80_arg_0 = var_76; [L303] SORT_1 var_80 = ~var_80_arg_0; [L304] SORT_1 var_81_arg_0 = var_79; [L305] SORT_1 var_81_arg_1 = var_80; [L306] EXPR var_81_arg_0 & var_81_arg_1 [L306] SORT_1 var_81 = var_81_arg_0 & var_81_arg_1; [L307] EXPR var_81 & mask_SORT_1 [L307] var_81 = var_81 & mask_SORT_1 [L308] SORT_1 bad_82_arg_0 = var_81; [L309] CALL __VERIFIER_assert(!(bad_82_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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s 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 [2023-11-23 20:36:40,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 85122204d036b5910f53a88c39bdbbba827d7c0829526b0f1f0f57c9eea94673 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:43,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:43,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-23 20:36:43,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:43,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:43,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:43,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:43,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:43,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:43,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:43,775 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:43,775 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:43,776 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:43,778 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:43,778 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:43,779 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:43,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:43,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:43,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:43,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:43,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:43,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:43,783 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:36:43,784 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:36:43,784 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:36:43,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:43,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:43,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:43,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:36:43,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:43,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:43,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:43,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:43,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:43,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:43,789 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:36:43,789 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:43,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:43,790 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:43,791 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:43,791 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:43,791 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_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85122204d036b5910f53a88c39bdbbba827d7c0829526b0f1f0f57c9eea94673 [2023-11-23 20:36:44,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:44,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:44,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:44,187 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:44,187 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:44,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2023-11-23 20:36:47,327 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:47,813 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:47,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2023-11-23 20:36:47,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/data/a6a978fb1/9eb2877c16a544098abb949fc012d9de/FLAGbc010790b [2023-11-23 20:36:47,866 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/data/a6a978fb1/9eb2877c16a544098abb949fc012d9de [2023-11-23 20:36:47,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:47,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:47,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:47,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:47,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:47,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:47" (1/1) ... [2023-11-23 20:36:47,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62214395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:47, skipping insertion in model container [2023-11-23 20:36:47,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:47" (1/1) ... [2023-11-23 20:36:47,980 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:48,220 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_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1246,1259] [2023-11-23 20:36:48,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:48,748 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:48,763 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_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1246,1259] [2023-11-23 20:36:48,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:48,930 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:48,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48 WrapperNode [2023-11-23 20:36:48,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:48,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:48,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:48,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:48,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,150 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2274 [2023-11-23 20:36:49,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:49,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:49,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:49,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:49,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:49,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:49,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:49,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:49,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (1/1) ... [2023-11-23 20:36:49,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:49,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:49,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:49,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:36:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:49,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:49,940 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:49,943 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:53,869 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:54,015 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:54,016 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:36:54,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:54 BoogieIcfgContainer [2023-11-23 20:36:54,017 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:54,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:54,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:54,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:54,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:47" (1/3) ... [2023-11-23 20:36:54,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd03e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:54, skipping insertion in model container [2023-11-23 20:36:54,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:48" (2/3) ... [2023-11-23 20:36:54,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd03e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:54, skipping insertion in model container [2023-11-23 20:36:54,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:54" (3/3) ... [2023-11-23 20:36:54,030 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal179.c [2023-11-23 20:36:54,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:54,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:54,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:54,117 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;@123d3f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:54,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:54,122 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) [2023-11-23 20:36:54,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:36:54,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:54,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 20:36:54,130 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:54,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:54,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-23 20:36:54,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:54,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111567938] [2023-11-23 20:36:54,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:54,155 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 [2023-11-23 20:36:54,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:54,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:36:54,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:36:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:54,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 20:36:54,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:36:54,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:54,939 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:54,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111567938] [2023-11-23 20:36:54,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111567938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:54,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:54,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:36:54,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243877852] [2023-11-23 20:36:54,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:54,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:36:54,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:54,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:36:54,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:36:54,980 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) [2023-11-23 20:36:55,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:55,421 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-23 20:36:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:36:55,425 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 [2023-11-23 20:36:55,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:55,432 INFO L225 Difference]: With dead ends: 16 [2023-11-23 20:36:55,432 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 20:36:55,435 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 [2023-11-23 20:36:55,441 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:55,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 20:36:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 20:36:55,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-23 20:36:55,472 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) [2023-11-23 20:36:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-23 20:36:55,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-23 20:36:55,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:55,475 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-23 20:36:55,475 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) [2023-11-23 20:36:55,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-23 20:36:55,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:36:55,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:55,477 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-23 20:36:55,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:36:55,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:36:55,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:55,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:55,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-23 20:36:55,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:55,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693191570] [2023-11-23 20:36:55,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:55,693 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 [2023-11-23 20:36:55,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:55,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:36:55,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:36:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:58,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 1890 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-23 20:36:58,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:59,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:36:59,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:37:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:37:00,458 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:37:00,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693191570] [2023-11-23 20:37:00,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693191570] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:37:00,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2056282088] [2023-11-23 20:37:00,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:00,460 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:37:00,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:37:00,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:37:00,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:37:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:03,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 1890 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 20:37:03,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:03,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:37:03,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:37:04,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:37:04,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2056282088] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:37:04,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384203559] [2023-11-23 20:37:04,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:04,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:37:04,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:04,475 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:37:04,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:37:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:05,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 1890 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-23 20:37:05,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:37:05,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:37:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:37:06,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384203559] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:37:06,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:37:06,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 10 [2023-11-23 20:37:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343830498] [2023-11-23 20:37:06,786 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:37:06,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 20:37:06,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:37:06,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 20:37:06,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-23 20:37:06,789 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:37:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:07,715 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-23 20:37:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 20:37:07,716 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 20:37:07,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:07,717 INFO L225 Difference]: With dead ends: 14 [2023-11-23 20:37:07,717 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 20:37:07,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-23 20:37:07,719 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:07,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 20:37:07,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 20:37:07,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-23 20:37:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-11-23 20:37:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-23 20:37:07,724 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-23 20:37:07,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:07,725 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-23 20:37:07,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:37:07,725 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-23 20:37:07,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:37:07,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:07,726 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-23 20:37:07,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:07,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52bf114e-1dcd-47d3-9d1f-71b0bb1165e0/bin/utaipan-verify-mE87zJ7Ire/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