./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX --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 f74c0f64dd8b514a3fa45ba4f87a322c4df7984da96078fd039eb406238ea150 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:31,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:31,235 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:47:31,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:31,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:31,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:31,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:31,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:31,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:31,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:31,271 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:31,272 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:31,273 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:31,273 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:31,274 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:31,275 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:31,275 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:31,276 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:31,276 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:31,277 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:31,278 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:31,278 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:31,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:31,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:31,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:31,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:31,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:31,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:31,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:31,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:31,283 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:31,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:31,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:31,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:31,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:31,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:31,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:31,287 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:31,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:31,288 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:31,289 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:31,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:31,290 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_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c0f64dd8b514a3fa45ba4f87a322c4df7984da96078fd039eb406238ea150 [2023-11-12 00:47:31,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:31,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:31,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:31,587 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:31,588 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:31,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c [2023-11-12 00:47:34,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:35,134 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:35,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c [2023-11-12 00:47:35,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/data/4a5e12c14/207497ab9ee34a248b78063ad93fec77/FLAGf9408c005 [2023-11-12 00:47:35,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/data/4a5e12c14/207497ab9ee34a248b78063ad93fec77 [2023-11-12 00:47:35,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:35,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:35,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:35,171 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:35,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:35,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:35" (1/1) ... [2023-11-12 00:47:35,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c527a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:35, skipping insertion in model container [2023-11-12 00:47:35,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:35" (1/1) ... [2023-11-12 00:47:35,269 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:35,485 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_5bb9c117-f67c-4283-8c91-9947bacff216/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c[1175,1188] [2023-11-12 00:47:35,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:35,886 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:35,899 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_5bb9c117-f67c-4283-8c91-9947bacff216/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c[1175,1188] [2023-11-12 00:47:36,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:36,169 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:36,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36 WrapperNode [2023-11-12 00:47:36,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:36,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:36,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:36,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:36,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:36,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:36,925 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5572 [2023-11-12 00:47:36,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:36,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:36,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:36,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:36,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:36,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:37,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:37,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:37,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:37,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:37,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:37,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:37,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:37,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:37,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:37,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:37,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (1/1) ... [2023-11-12 00:47:37,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:37,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:37,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:37,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:47:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:37,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:38,099 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:38,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:42,709 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:54,778 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:54,779 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:54,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:54 BoogieIcfgContainer [2023-11-12 00:47:54,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:54,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:54,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:54,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:54,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:35" (1/3) ... [2023-11-12 00:47:54,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333f1a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:54, skipping insertion in model container [2023-11-12 00:47:54,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:36" (2/3) ... [2023-11-12 00:47:54,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333f1a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:54, skipping insertion in model container [2023-11-12 00:47:54,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:54" (3/3) ... [2023-11-12 00:47:54,791 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.3.prop1-func-interl.c [2023-11-12 00:47:54,812 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:54,812 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:54,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:54,867 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;@400f7912, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:54,868 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:54,872 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) [2023-11-12 00:47:54,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:47:54,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:54,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:47:54,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:54,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:54,886 INFO L85 PathProgramCache]: Analyzing trace with hash 227254608, now seen corresponding path program 1 times [2023-11-12 00:47:54,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:54,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361728161] [2023-11-12 00:47:54,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:54,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:55,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:47:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:56,242 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:47:56,244 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:47:56,246 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:47:56,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:47:56,258 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:47:56,263 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:47:56,310 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 00:47:56,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:47:56 BoogieIcfgContainer [2023-11-12 00:47:56,333 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:47:56,336 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:47:56,336 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:47:56,336 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:47:56,337 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:54" (3/4) ... [2023-11-12 00:47:56,342 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:47:56,343 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:47:56,345 INFO L158 Benchmark]: Toolchain (without parser) took 21174.87ms. Allocated memory was 151.0MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 113.2MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 295.0MB. Max. memory is 16.1GB. [2023-11-12 00:47:56,346 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:56,348 INFO L158 Benchmark]: CACSL2BoogieTranslator took 999.91ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 112.8MB in the beginning and 169.1MB in the end (delta: -56.3MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. [2023-11-12 00:47:56,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 754.64ms. Allocated memory is still 222.3MB. Free memory was 169.1MB in the beginning and 107.3MB in the end (delta: 61.8MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. [2023-11-12 00:47:56,354 INFO L158 Benchmark]: Boogie Preprocessor took 677.51ms. Allocated memory is still 222.3MB. Free memory was 107.3MB in the beginning and 83.1MB in the end (delta: 24.1MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2023-11-12 00:47:56,355 INFO L158 Benchmark]: RCFGBuilder took 17177.59ms. Allocated memory was 222.3MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 83.1MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 622.2MB. Max. memory is 16.1GB. [2023-11-12 00:47:56,357 INFO L158 Benchmark]: TraceAbstraction took 1548.63ms. Allocated memory was 2.4GB in the beginning and 4.8GB in the end (delta: 2.4GB). Free memory was 1.8GB in the beginning and 4.5GB in the end (delta: -2.7GB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:56,358 INFO L158 Benchmark]: Witness Printer took 7.65ms. Allocated memory is still 4.8GB. Free memory was 4.5GB in the beginning and 4.5GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:56,367 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 999.91ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 112.8MB in the beginning and 169.1MB in the end (delta: -56.3MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 754.64ms. Allocated memory is still 222.3MB. Free memory was 169.1MB in the beginning and 107.3MB in the end (delta: 61.8MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 677.51ms. Allocated memory is still 222.3MB. Free memory was 107.3MB in the beginning and 83.1MB in the end (delta: 24.1MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * RCFGBuilder took 17177.59ms. Allocated memory was 222.3MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 83.1MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 622.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1548.63ms. Allocated memory was 2.4GB in the beginning and 4.8GB in the end (delta: 2.4GB). Free memory was 1.8GB in the beginning and 4.5GB in the end (delta: -2.7GB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.65ms. Allocated memory is still 4.8GB. Free memory was 4.5GB in the beginning and 4.5GB 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 bitwiseAnd at line 147. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_20 = 0; [L40] const SORT_4 var_53 = 1; [L41] const SORT_4 var_54 = 0; [L42] const SORT_2 var_63 = 1; [L43] const SORT_3 var_65 = 0; [L44] const SORT_4 var_68 = 3; [L45] const SORT_2 var_78 = 0; [L46] const SORT_4 var_131 = 2; [L47] const SORT_2 var_242 = 2; [L49] SORT_1 input_64; [L50] SORT_1 input_72; [L51] SORT_1 input_79; [L52] SORT_1 input_85; [L53] SORT_1 input_91; [L54] SORT_1 input_97; [L55] SORT_1 input_151; [L56] SORT_1 input_155; [L57] SORT_1 input_158; [L58] SORT_1 input_159; [L59] SORT_1 input_160; [L60] SORT_1 input_161; [L61] SORT_1 input_169; [L62] SORT_1 input_175; [L63] SORT_1 input_181; [L64] SORT_1 input_196; [L65] SORT_1 input_214; [L66] SORT_1 input_232; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L68] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L69] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L70] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L71] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L72] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L73] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L74] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L75] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L76] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L77] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L78] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L79] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L80] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L81] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L82] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L83] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L84] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L85] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L86] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L87] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L88] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L89] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L90] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_2 init_7_arg_1 = var_5; [L93] state_6 = init_7_arg_1 [L94] SORT_2 init_9_arg_1 = var_5; [L95] state_8 = init_9_arg_1 [L96] SORT_2 init_11_arg_1 = var_5; [L97] state_10 = init_11_arg_1 [L98] SORT_2 init_13_arg_1 = var_5; [L99] state_12 = init_13_arg_1 [L100] SORT_2 init_15_arg_1 = var_5; [L101] state_14 = init_15_arg_1 [L102] SORT_2 init_17_arg_1 = var_5; [L103] state_16 = init_17_arg_1 [L104] SORT_2 init_19_arg_1 = var_5; [L105] state_18 = init_19_arg_1 [L106] SORT_1 init_22_arg_1 = var_20; [L107] state_21 = init_22_arg_1 [L108] SORT_1 init_24_arg_1 = var_20; [L109] state_23 = init_24_arg_1 [L110] SORT_1 init_26_arg_1 = var_20; [L111] state_25 = init_26_arg_1 [L112] SORT_1 init_28_arg_1 = var_20; [L113] state_27 = init_28_arg_1 [L114] SORT_1 init_30_arg_1 = var_20; [L115] state_29 = init_30_arg_1 [L116] SORT_1 init_32_arg_1 = var_20; [L117] state_31 = init_32_arg_1 [L118] SORT_1 init_34_arg_1 = var_20; [L119] state_33 = init_34_arg_1 [L120] SORT_1 init_36_arg_1 = var_20; [L121] state_35 = init_36_arg_1 [L122] SORT_1 init_38_arg_1 = var_20; [L123] state_37 = init_38_arg_1 [L124] SORT_1 init_40_arg_1 = var_20; [L125] state_39 = init_40_arg_1 [L126] SORT_1 init_42_arg_1 = var_20; [L127] state_41 = init_42_arg_1 [L128] SORT_1 init_44_arg_1 = var_20; [L129] state_43 = init_44_arg_1 [L130] SORT_1 init_46_arg_1 = var_20; [L131] state_45 = init_46_arg_1 [L132] SORT_1 init_48_arg_1 = var_20; [L133] state_47 = init_48_arg_1 [L134] SORT_1 init_50_arg_1 = var_20; [L135] state_49 = init_50_arg_1 [L136] SORT_1 init_52_arg_1 = var_20; [L137] state_51 = init_52_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_131=2, var_20=0, var_242=2, var_53=1, var_54=0, var_5=0, var_63=1, var_65=0, var_68=3, var_78=0] [L140] input_64 = __VERIFIER_nondet_uchar() [L141] input_72 = __VERIFIER_nondet_uchar() [L142] input_79 = __VERIFIER_nondet_uchar() [L143] input_85 = __VERIFIER_nondet_uchar() [L144] input_91 = __VERIFIER_nondet_uchar() [L145] input_97 = __VERIFIER_nondet_uchar() [L146] input_151 = __VERIFIER_nondet_uchar() [L147] EXPR input_151 & mask_SORT_1 [L147] input_151 = input_151 & mask_SORT_1 [L148] input_155 = __VERIFIER_nondet_uchar() [L149] EXPR input_155 & mask_SORT_1 [L149] input_155 = input_155 & mask_SORT_1 [L150] input_158 = __VERIFIER_nondet_uchar() [L151] EXPR input_158 & mask_SORT_1 [L151] input_158 = input_158 & mask_SORT_1 [L152] input_159 = __VERIFIER_nondet_uchar() [L153] EXPR input_159 & mask_SORT_1 [L153] input_159 = input_159 & mask_SORT_1 [L154] input_160 = __VERIFIER_nondet_uchar() [L155] EXPR input_160 & mask_SORT_1 [L155] input_160 = input_160 & mask_SORT_1 [L156] input_161 = __VERIFIER_nondet_uchar() [L157] EXPR input_161 & mask_SORT_1 [L157] input_161 = input_161 & mask_SORT_1 [L158] input_169 = __VERIFIER_nondet_uchar() [L159] EXPR input_169 & mask_SORT_1 [L159] input_169 = input_169 & mask_SORT_1 [L160] input_175 = __VERIFIER_nondet_uchar() [L161] EXPR input_175 & mask_SORT_1 [L161] input_175 = input_175 & mask_SORT_1 [L162] input_181 = __VERIFIER_nondet_uchar() [L163] EXPR input_181 & mask_SORT_1 [L163] input_181 = input_181 & mask_SORT_1 [L164] input_196 = __VERIFIER_nondet_uchar() [L165] input_214 = __VERIFIER_nondet_uchar() [L166] input_232 = __VERIFIER_nondet_uchar() [L169] SORT_1 var_55_arg_0 = state_29; [L170] SORT_4 var_55_arg_1 = var_53; [L171] SORT_4 var_55_arg_2 = var_54; [L172] SORT_4 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L173] SORT_1 var_56_arg_0 = state_39; [L174] SORT_4 var_56_arg_1 = var_53; [L175] SORT_4 var_56_arg_2 = var_54; [L176] SORT_4 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L177] SORT_4 var_57_arg_0 = var_55; [L178] SORT_4 var_57_arg_1 = var_56; [L179] SORT_4 var_57 = var_57_arg_0 + var_57_arg_1; [L180] SORT_1 var_58_arg_0 = state_49; [L181] SORT_4 var_58_arg_1 = var_53; [L182] SORT_4 var_58_arg_2 = var_54; [L183] SORT_4 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L184] SORT_4 var_59_arg_0 = var_57; [L185] SORT_4 var_59_arg_1 = var_58; [L186] SORT_4 var_59 = var_59_arg_0 + var_59_arg_1; [L187] EXPR var_59 & mask_SORT_4 [L187] var_59 = var_59 & mask_SORT_4 [L188] SORT_4 var_60_arg_0 = var_59; [L189] SORT_4 var_60_arg_1 = var_53; [L190] SORT_1 var_60 = var_60_arg_0 <= var_60_arg_1; [L191] SORT_1 var_61_arg_0 = ~state_51; [L192] EXPR var_61_arg_0 & mask_SORT_1 [L192] var_61_arg_0 = var_61_arg_0 & mask_SORT_1 [L193] SORT_1 var_61_arg_1 = ~var_60; [L194] EXPR var_61_arg_1 & mask_SORT_1 [L194] var_61_arg_1 = var_61_arg_1 & mask_SORT_1 [L195] EXPR var_61_arg_0 & var_61_arg_1 [L195] SORT_1 var_61 = var_61_arg_0 & var_61_arg_1; [L196] EXPR var_61 & mask_SORT_1 [L196] var_61 = var_61 & mask_SORT_1 [L197] SORT_1 bad_62_arg_0 = var_61; [L198] CALL __VERIFIER_assert(!(bad_62_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, 0.7s 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 [2023-11-12 00:47:56,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX --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 f74c0f64dd8b514a3fa45ba4f87a322c4df7984da96078fd039eb406238ea150 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:59,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:59,428 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-12 00:47:59,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:59,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:59,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:59,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:59,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:59,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:59,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:59,493 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:59,494 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:59,494 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:59,496 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:59,496 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:59,497 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:59,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:59,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:59,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:59,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:59,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:59,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:59,502 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:47:59,502 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:47:59,503 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:47:59,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:59,504 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:59,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:59,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:47:59,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:59,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:59,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:59,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:59,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:59,508 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:47:59,509 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:47:59,509 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:59,509 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:59,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:59,510 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_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c0f64dd8b514a3fa45ba4f87a322c4df7984da96078fd039eb406238ea150 [2023-11-12 00:47:59,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:59,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:59,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:59,954 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:59,955 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:59,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c [2023-11-12 00:48:03,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:03,656 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:03,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c [2023-11-12 00:48:03,680 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/data/759c30f74/da3db3327a55486c8b501d6675fdf5db/FLAG14ed1347e [2023-11-12 00:48:03,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/data/759c30f74/da3db3327a55486c8b501d6675fdf5db [2023-11-12 00:48:03,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:03,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:03,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:03,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:03,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:03,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:03" (1/1) ... [2023-11-12 00:48:03,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5626a2aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:03, skipping insertion in model container [2023-11-12 00:48:03,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:03" (1/1) ... [2023-11-12 00:48:03,807 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:04,035 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_5bb9c117-f67c-4283-8c91-9947bacff216/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c[1175,1188] [2023-11-12 00:48:04,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:04,357 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:04,369 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_5bb9c117-f67c-4283-8c91-9947bacff216/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.3.prop1-func-interl.c[1175,1188] [2023-11-12 00:48:04,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:04,544 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:04,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04 WrapperNode [2023-11-12 00:48:04,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:04,546 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:04,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:04,546 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:04,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,712 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1435 [2023-11-12 00:48:04,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:04,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:04,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:04,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:04,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:04,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:04,856 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:04,856 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:04,857 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (1/1) ... [2023-11-12 00:48:04,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:04,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:04,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:04,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:48:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:05,315 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:05,318 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:09,923 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:09,930 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:09,930 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:48:09,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:09 BoogieIcfgContainer [2023-11-12 00:48:09,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:09,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:09,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:09,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:09,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:03" (1/3) ... [2023-11-12 00:48:09,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608a866b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:09, skipping insertion in model container [2023-11-12 00:48:09,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:04" (2/3) ... [2023-11-12 00:48:09,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608a866b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:09, skipping insertion in model container [2023-11-12 00:48:09,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:09" (3/3) ... [2023-11-12 00:48:09,945 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.3.prop1-func-interl.c [2023-11-12 00:48:09,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:09,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:48:10,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:10,031 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;@19df2188, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:10,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:48:10,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-12 00:48:10,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:48:10,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:10,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:48:10,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:10,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:10,055 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-12 00:48:10,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:10,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101069293] [2023-11-12 00:48:10,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:10,074 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 [2023-11-12 00:48:10,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:10,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:48:10,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:48:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:10,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-12 00:48:10,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:11,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:11,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:11,094 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:48:11,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101069293] [2023-11-12 00:48:11,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101069293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:11,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:11,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:11,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146639042] [2023-11-12 00:48:11,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:11,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:11,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:48:11,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:11,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:11,135 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-12 00:48:13,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:48:14,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:14,972 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-12 00:48:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:14,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2023-11-12 00:48:14,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:14,983 INFO L225 Difference]: With dead ends: 19 [2023-11-12 00:48:14,983 INFO L226 Difference]: Without dead ends: 10 [2023-11-12 00:48:14,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:14,991 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:14,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2023-11-12 00:48:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-12 00:48:15,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-12 00:48:15,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2023-11-12 00:48:15,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-12 00:48:15,024 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-12 00:48:15,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:15,025 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-12 00:48:15,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-12 00:48:15,025 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-12 00:48:15,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:48:15,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:15,026 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:15,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:48:15,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:48:15,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:15,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-12 00:48:15,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:48:15,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144814571] [2023-11-12 00:48:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:15,244 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 [2023-11-12 00:48:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:48:15,246 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:48:15,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bb9c117-f67c-4283-8c91-9947bacff216/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:48:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:17,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 111 conjunts are in the unsatisfiable core [2023-11-12 00:48:17,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:19,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:19,540 INFO L327 TraceCheckSpWp]: Computing backward predicates...