./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c2f9f17c6d1e33b7d4937d5702f73ddc421381e322ac5ad4ecf1688b251301a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:56:30,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:56:30,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:56:30,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:56:30,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:56:30,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:56:30,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:56:30,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:56:30,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:56:30,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:56:30,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:56:30,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:56:30,227 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:56:30,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:56:30,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:56:30,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:56:30,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:56:30,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:56:30,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:56:30,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:56:30,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:56:30,232 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:56:30,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:56:30,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:56:30,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:56:30,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:56:30,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:56:30,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:56:30,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:56:30,237 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:56:30,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:56:30,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:56:30,239 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:56:30,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:56:30,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:56:30,240 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:56:30,241 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2f9f17c6d1e33b7d4937d5702f73ddc421381e322ac5ad4ecf1688b251301a7 [2023-11-06 22:56:30,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:56:30,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:56:30,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:56:30,538 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:56:30,539 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:56:30,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c [2023-11-06 22:56:34,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:56:34,466 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:56:34,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c [2023-11-06 22:56:34,480 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/data/c98e2d5c3/4c35f5a73b444ec6955755a74f4fb2b4/FLAG6dd668948 [2023-11-06 22:56:34,501 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/data/c98e2d5c3/4c35f5a73b444ec6955755a74f4fb2b4 [2023-11-06 22:56:34,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:56:34,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:56:34,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:34,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:56:34,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:56:34,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:34" (1/1) ... [2023-11-06 22:56:34,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b362fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:34, skipping insertion in model container [2023-11-06 22:56:34,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:34" (1/1) ... [2023-11-06 22:56:34,576 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:56:34,791 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_319fe006-5713-4690-9eae-4ee4daac04ef/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c[1245,1258] [2023-11-06 22:56:34,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:34,927 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:56:34,944 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_319fe006-5713-4690-9eae-4ee4daac04ef/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c[1245,1258] [2023-11-06 22:56:35,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:35,026 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:56:35,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35 WrapperNode [2023-11-06 22:56:35,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:35,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:35,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:56:35,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:56:35,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,137 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 327 [2023-11-06 22:56:35,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:35,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:56:35,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:56:35,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:56:35,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:56:35,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:56:35,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:56:35,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:56:35,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:56:35,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:35,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:35,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:56:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:56:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:56:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:56:35,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:56:35,439 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:56:35,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:56:36,257 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:56:36,266 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:56:36,266 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:56:36,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:36 BoogieIcfgContainer [2023-11-06 22:56:36,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:56:36,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:56:36,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:56:36,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:56:36,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:56:34" (1/3) ... [2023-11-06 22:56:36,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610f7485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:36, skipping insertion in model container [2023-11-06 22:56:36,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35" (2/3) ... [2023-11-06 22:56:36,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610f7485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:36, skipping insertion in model container [2023-11-06 22:56:36,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:36" (3/3) ... [2023-11-06 22:56:36,284 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal25.c [2023-11-06 22:56:36,304 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:56:36,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:56:36,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:56:36,377 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@34c00a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:56:36,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:56:36,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 54 states have (on average 1.6296296296296295) internal successors, (88), 55 states have internal predecessors, (88), 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) [2023-11-06 22:56:36,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-06 22:56:36,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:36,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:36,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:36,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:36,400 INFO L85 PathProgramCache]: Analyzing trace with hash 335550580, now seen corresponding path program 1 times [2023-11-06 22:56:36,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:36,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538260141] [2023-11-06 22:56:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:36,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:37,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:37,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538260141] [2023-11-06 22:56:37,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538260141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:37,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:37,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:37,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764922409] [2023-11-06 22:56:37,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:37,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:37,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:37,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:37,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:37,308 INFO L87 Difference]: Start difference. First operand has 56 states, 54 states have (on average 1.6296296296296295) internal successors, (88), 55 states have internal predecessors, (88), 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 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:37,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:37,384 INFO L93 Difference]: Finished difference Result 96 states and 154 transitions. [2023-11-06 22:56:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:37,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-06 22:56:37,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:37,398 INFO L225 Difference]: With dead ends: 96 [2023-11-06 22:56:37,399 INFO L226 Difference]: Without dead ends: 54 [2023-11-06 22:56:37,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:37,408 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 1 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:37,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 234 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:56:37,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-06 22:56:37,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-06 22:56:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.5849056603773586) internal successors, (84), 53 states have internal predecessors, (84), 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) [2023-11-06 22:56:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2023-11-06 22:56:37,488 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 84 transitions. Word has length 27 [2023-11-06 22:56:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:37,490 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 84 transitions. [2023-11-06 22:56:37,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 84 transitions. [2023-11-06 22:56:37,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-06 22:56:37,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:37,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:37,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:56:37,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:37,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:37,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1813858468, now seen corresponding path program 1 times [2023-11-06 22:56:37,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:37,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41891806] [2023-11-06 22:56:37,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:37,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:37,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:37,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41891806] [2023-11-06 22:56:37,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41891806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:37,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:37,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:37,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212697110] [2023-11-06 22:56:37,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:37,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:37,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:37,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:37,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:37,738 INFO L87 Difference]: Start difference. First operand 54 states and 84 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-06 22:56:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:37,795 INFO L93 Difference]: Finished difference Result 97 states and 150 transitions. [2023-11-06 22:56:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:37,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2023-11-06 22:56:37,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:37,800 INFO L225 Difference]: With dead ends: 97 [2023-11-06 22:56:37,801 INFO L226 Difference]: Without dead ends: 57 [2023-11-06 22:56:37,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:37,808 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 1 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:37,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 231 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:56:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-06 22:56:37,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2023-11-06 22:56:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.5636363636363637) internal successors, (86), 55 states have internal predecessors, (86), 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) [2023-11-06 22:56:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 86 transitions. [2023-11-06 22:56:37,820 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 86 transitions. Word has length 28 [2023-11-06 22:56:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:37,821 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 86 transitions. [2023-11-06 22:56:37,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-06 22:56:37,821 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 86 transitions. [2023-11-06 22:56:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-06 22:56:37,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:37,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:37,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:56:37,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:37,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:37,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1959612688, now seen corresponding path program 1 times [2023-11-06 22:56:37,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:37,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043442375] [2023-11-06 22:56:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:37,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:38,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:38,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043442375] [2023-11-06 22:56:38,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043442375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:38,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:38,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:56:38,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678046960] [2023-11-06 22:56:38,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:38,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:56:38,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:38,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:56:38,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:56:38,368 INFO L87 Difference]: Start difference. First operand 56 states and 86 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2023-11-06 22:56:38,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:38,618 INFO L93 Difference]: Finished difference Result 153 states and 235 transitions. [2023-11-06 22:56:38,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:56:38,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 29 [2023-11-06 22:56:38,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:38,628 INFO L225 Difference]: With dead ends: 153 [2023-11-06 22:56:38,629 INFO L226 Difference]: Without dead ends: 111 [2023-11-06 22:56:38,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:56:38,634 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 320 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:38,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 314 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-06 22:56:38,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 70. [2023-11-06 22:56:38,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.565217391304348) internal successors, (108), 69 states have internal predecessors, (108), 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) [2023-11-06 22:56:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 108 transitions. [2023-11-06 22:56:38,660 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 108 transitions. Word has length 29 [2023-11-06 22:56:38,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:38,660 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 108 transitions. [2023-11-06 22:56:38,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2023-11-06 22:56:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions. [2023-11-06 22:56:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 22:56:38,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:38,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:38,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:56:38,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:38,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:38,664 INFO L85 PathProgramCache]: Analyzing trace with hash 507744780, now seen corresponding path program 1 times [2023-11-06 22:56:38,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:38,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100786763] [2023-11-06 22:56:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:38,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:39,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:39,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100786763] [2023-11-06 22:56:39,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100786763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:39,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:39,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:56:39,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319949556] [2023-11-06 22:56:39,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:39,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:56:39,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:56:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:56:39,095 INFO L87 Difference]: Start difference. First operand 70 states and 108 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2023-11-06 22:56:39,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:39,508 INFO L93 Difference]: Finished difference Result 188 states and 288 transitions. [2023-11-06 22:56:39,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:56:39,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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 30 [2023-11-06 22:56:39,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:39,515 INFO L225 Difference]: With dead ends: 188 [2023-11-06 22:56:39,515 INFO L226 Difference]: Without dead ends: 146 [2023-11-06 22:56:39,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:56:39,520 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 533 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:39,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 493 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:56:39,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-06 22:56:39,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 73. [2023-11-06 22:56:39,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 72 states have internal predecessors, (112), 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) [2023-11-06 22:56:39,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 112 transitions. [2023-11-06 22:56:39,535 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 112 transitions. Word has length 30 [2023-11-06 22:56:39,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:39,536 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 112 transitions. [2023-11-06 22:56:39,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2023-11-06 22:56:39,537 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 112 transitions. [2023-11-06 22:56:39,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 22:56:39,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:39,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:39,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:56:39,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:39,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash 114717770, now seen corresponding path program 1 times [2023-11-06 22:56:39,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:39,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226862591] [2023-11-06 22:56:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:39,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:39,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:39,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:39,664 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:56:39,665 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:56:39,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:56:39,671 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:56:39,676 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:56:39,746 WARN L316 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-06 22:56:39,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:56:39 BoogieIcfgContainer [2023-11-06 22:56:39,768 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:56:39,770 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:56:39,770 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:56:39,770 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:56:39,771 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:36" (3/4) ... [2023-11-06 22:56:39,773 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:56:39,776 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:56:39,777 INFO L158 Benchmark]: Toolchain (without parser) took 5264.17ms. Allocated memory was 165.7MB in the beginning and 218.1MB in the end (delta: 52.4MB). Free memory was 135.3MB in the beginning and 166.8MB in the end (delta: -31.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-06 22:56:39,778 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 109.1MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:56:39,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.12ms. Allocated memory is still 165.7MB. Free memory was 135.3MB in the beginning and 121.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:56:39,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.01ms. Allocated memory is still 165.7MB. Free memory was 121.2MB in the beginning and 114.5MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:56:39,784 INFO L158 Benchmark]: Boogie Preprocessor took 101.67ms. Allocated memory is still 165.7MB. Free memory was 114.5MB in the beginning and 111.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:56:39,784 INFO L158 Benchmark]: RCFGBuilder took 1028.94ms. Allocated memory is still 165.7MB. Free memory was 111.6MB in the beginning and 127.9MB in the end (delta: -16.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-06 22:56:39,785 INFO L158 Benchmark]: TraceAbstraction took 3495.15ms. Allocated memory was 165.7MB in the beginning and 218.1MB in the end (delta: 52.4MB). Free memory was 127.3MB in the beginning and 166.8MB in the end (delta: -39.4MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-06 22:56:39,785 INFO L158 Benchmark]: Witness Printer took 7.02ms. Allocated memory is still 218.1MB. Free memory is still 166.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:56:39,789 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 109.1MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.12ms. Allocated memory is still 165.7MB. Free memory was 135.3MB in the beginning and 121.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.01ms. Allocated memory is still 165.7MB. Free memory was 121.2MB in the beginning and 114.5MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.67ms. Allocated memory is still 165.7MB. Free memory was 114.5MB in the beginning and 111.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1028.94ms. Allocated memory is still 165.7MB. Free memory was 111.6MB in the beginning and 127.9MB in the end (delta: -16.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3495.15ms. Allocated memory was 165.7MB in the beginning and 218.1MB in the end (delta: 52.4MB). Free memory was 127.3MB in the beginning and 166.8MB in the end (delta: -39.4MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 7.02ms. Allocated memory is still 218.1MB. Free memory is still 166.8MB. 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 92, overapproximation of bitwiseAnd at line 97. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 2); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (2 - 1); [L32] const SORT_1 var_10 = 0; [L33] const SORT_5 var_14 = 0; [L34] const SORT_1 var_29 = 1; [L35] const SORT_5 var_40 = 1; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L39] SORT_1 input_4; [L40] SORT_5 input_6; [L41] SORT_1 input_7; [L42] SORT_5 input_8; [L43] SORT_5 input_9; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, var_10=0, var_14=0, var_29=1, var_40=1] [L45] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [__VERIFIER_nondet_uchar() & mask_SORT_5=0, __VERIFIER_nondet_uchar()=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, var_10=0, var_14=0, var_29=1, var_40=1] [L46] SORT_5 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [__VERIFIER_nondet_uchar() & mask_SORT_1=0, __VERIFIER_nondet_uchar()=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, var_10=0, var_14=0, var_29=1, var_40=1] [L47] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [__VERIFIER_nondet_uchar() & mask_SORT_5=0, __VERIFIER_nondet_uchar()=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, var_10=0, var_14=0, var_29=1, var_40=1] [L48] SORT_5 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L50] SORT_1 init_12_arg_1 = var_10; [L51] state_11 = init_12_arg_1 [L52] SORT_5 init_16_arg_1 = var_14; [L53] state_15 = init_16_arg_1 [L54] SORT_1 init_18_arg_1 = var_10; [L55] state_17 = init_18_arg_1 [L56] SORT_5 init_22_arg_1 = var_14; [L57] state_21 = init_22_arg_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_40=1] [L60] input_2 = __VERIFIER_nondet_uchar() [L61] EXPR input_2 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2 & mask_SORT_1=0, input_2=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_40=1] [L61] input_2 = input_2 & mask_SORT_1 [L62] input_3 = __VERIFIER_nondet_uchar() [L63] EXPR input_3 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3 & mask_SORT_1=0, input_3=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_40=1] [L63] input_3 = input_3 & mask_SORT_1 [L64] input_4 = __VERIFIER_nondet_uchar() [L65] input_6 = __VERIFIER_nondet_uchar() [L66] input_7 = __VERIFIER_nondet_uchar() [L67] input_8 = __VERIFIER_nondet_uchar() [L68] input_9 = __VERIFIER_nondet_uchar() [L71] SORT_1 var_13_arg_0 = state_11; [L72] SORT_1 var_13 = ~var_13_arg_0; [L73] SORT_1 var_19_arg_0 = state_17; [L74] SORT_5 var_19_arg_1 = state_15; [L75] SORT_5 var_19_arg_2 = input_6; [L76] SORT_5 var_19 = var_19_arg_0 ? var_19_arg_1 : var_19_arg_2; [L77] SORT_5 var_20_arg_0 = var_19; [L78] SORT_1 var_20 = var_20_arg_0 >> 0; VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_29=1, var_40=1] [L79] EXPR var_20 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20 & mask_SORT_1=0, var_20=0, var_20_arg_0=0, var_29=1, var_40=1] [L79] var_20 = var_20 & mask_SORT_1 [L80] SORT_1 var_23_arg_0 = state_17; [L81] SORT_5 var_23_arg_1 = state_21; [L82] SORT_5 var_23_arg_2 = input_6; [L83] SORT_5 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L84] SORT_5 var_24_arg_0 = var_23; [L85] SORT_1 var_24 = var_24_arg_0 >> 0; VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_29=1, var_40=1] [L86] EXPR var_24 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24 & mask_SORT_1=0, var_24=0, var_24_arg_0=0, var_29=1, var_40=1] [L86] var_24 = var_24 & mask_SORT_1 [L87] SORT_1 var_25_arg_0 = var_20; [L88] SORT_1 var_25_arg_1 = var_24; [L89] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L90] SORT_1 var_26_arg_0 = var_13; [L91] SORT_1 var_26_arg_1 = var_25; VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_40=1] [L92] EXPR var_26_arg_0 | var_26_arg_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26_arg_0 | var_26_arg_1=256, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_40=1] [L92] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L93] SORT_1 var_30_arg_0 = var_26; [L94] SORT_1 var_30 = ~var_30_arg_0; [L95] SORT_1 var_31_arg_0 = var_29; [L96] SORT_1 var_31_arg_1 = var_30; VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_30=255, var_30_arg_0=0, var_31_arg_0=1, var_31_arg_1=255, var_40=1] [L97] EXPR var_31_arg_0 & var_31_arg_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_30=255, var_30_arg_0=0, var_31_arg_0 & var_31_arg_1=1, var_31_arg_0=1, var_31_arg_1=255, var_40=1] [L97] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L98] EXPR var_31 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_30=255, var_30_arg_0=0, var_31 & mask_SORT_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=255, var_40=1] [L98] var_31 = var_31 & mask_SORT_1 [L99] SORT_1 bad_32_arg_0 = var_31; [L100] CALL __VERIFIER_assert(!(bad_32_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, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 855 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 855 mSDsluCounter, 1272 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 924 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 348 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 115 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2023-11-06 22:56:39,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c2f9f17c6d1e33b7d4937d5702f73ddc421381e322ac5ad4ecf1688b251301a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:56:43,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:56:43,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-06 22:56:43,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:56:43,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:56:43,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:56:43,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:56:43,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:56:43,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:56:43,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:56:43,402 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:56:43,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:56:43,403 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:56:43,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:56:43,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:56:43,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:56:43,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:56:43,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:56:43,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:56:43,407 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:56:43,408 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:56:43,408 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:56:43,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:56:43,409 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:56:43,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:56:43,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:56:43,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:56:43,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:56:43,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:56:43,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:56:43,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:56:43,414 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:56:43,415 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:56:43,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:56:43,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:56:43,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:56:43,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:56:43,416 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:56:43,417 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:56:43,418 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2f9f17c6d1e33b7d4937d5702f73ddc421381e322ac5ad4ecf1688b251301a7 [2023-11-06 22:56:43,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:56:43,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:56:43,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:56:43,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:56:43,919 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:56:43,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c [2023-11-06 22:56:47,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:56:47,538 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:56:47,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c [2023-11-06 22:56:47,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/data/1fb845236/91e931f0f09f42289fcda3f77890c9ad/FLAGc1cca4bb7 [2023-11-06 22:56:47,583 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/data/1fb845236/91e931f0f09f42289fcda3f77890c9ad [2023-11-06 22:56:47,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:56:47,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:56:47,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:47,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:56:47,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:56:47,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:47" (1/1) ... [2023-11-06 22:56:47,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417c3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:47, skipping insertion in model container [2023-11-06 22:56:47,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:47" (1/1) ... [2023-11-06 22:56:47,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:56:47,810 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_319fe006-5713-4690-9eae-4ee4daac04ef/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c[1245,1258] [2023-11-06 22:56:47,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:47,887 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:56:47,918 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_319fe006-5713-4690-9eae-4ee4daac04ef/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c[1245,1258] [2023-11-06 22:56:47,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:48,002 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:56:48,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48 WrapperNode [2023-11-06 22:56:48,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:48,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:48,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:56:48,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:56:48,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,085 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 177 [2023-11-06 22:56:48,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:48,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:56:48,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:56:48,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:56:48,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,117 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:56:48,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:56:48,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:56:48,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:56:48,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (1/1) ... [2023-11-06 22:56:48,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:56:48,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:48,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:48,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:56:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:56:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:56:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:56:48,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:56:48,465 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:56:48,477 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:56:48,873 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:56:48,880 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:56:48,880 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:56:48,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:48 BoogieIcfgContainer [2023-11-06 22:56:48,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:56:48,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:56:48,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:56:48,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:56:48,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:56:47" (1/3) ... [2023-11-06 22:56:48,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f78bf73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:48, skipping insertion in model container [2023-11-06 22:56:48,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:48" (2/3) ... [2023-11-06 22:56:48,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f78bf73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:48, skipping insertion in model container [2023-11-06 22:56:48,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:48" (3/3) ... [2023-11-06 22:56:48,906 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal25.c [2023-11-06 22:56:48,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:56:48,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:56:49,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:56:49,009 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5ba24795, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:56:49,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:56:49,016 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) [2023-11-06 22:56:49,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:56:49,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:49,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:56:49,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:49,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:49,031 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-06 22:56:49,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:49,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654066021] [2023-11-06 22:56:49,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:49,048 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 [2023-11-06 22:56:49,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:49,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:56:49,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:49,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:56:49,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:49,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:49,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:49,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654066021] [2023-11-06 22:56:49,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654066021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:49,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:49,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:49,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757841998] [2023-11-06 22:56:49,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:49,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:49,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:49,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:49,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:49,609 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) [2023-11-06 22:56:49,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:49,680 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-06 22:56:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:49,683 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 [2023-11-06 22:56:49,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:49,692 INFO L225 Difference]: With dead ends: 19 [2023-11-06 22:56:49,692 INFO L226 Difference]: Without dead ends: 10 [2023-11-06 22:56:49,695 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 [2023-11-06 22:56:49,702 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:49,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:56:49,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-06 22:56:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-06 22:56:49,741 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) [2023-11-06 22:56:49,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-06 22:56:49,744 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-06 22:56:49,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:49,744 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-06 22:56:49,745 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) [2023-11-06 22:56:49,745 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-06 22:56:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:56:49,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:49,746 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:49,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:49,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:49,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:49,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:49,966 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-06 22:56:49,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:49,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342928975] [2023-11-06 22:56:49,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:49,969 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 [2023-11-06 22:56:49,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:49,970 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:56:49,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:50,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-06 22:56:50,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:50,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:50,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:51,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:51,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:51,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342928975] [2023-11-06 22:56:51,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342928975] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:56:51,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:56:51,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:56:51,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305562178] [2023-11-06 22:56:51,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:56:51,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:56:51,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:51,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:56:51,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:56:51,483 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:51,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:51,629 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-06 22:56:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:56:51,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:56:51,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:51,631 INFO L225 Difference]: With dead ends: 15 [2023-11-06 22:56:51,631 INFO L226 Difference]: Without dead ends: 13 [2023-11-06 22:56:51,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:56:51,634 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:51,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 17 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:51,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-06 22:56:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-06 22:56:51,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2023-11-06 22:56:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-06 22:56:51,640 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2023-11-06 22:56:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:51,640 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-11-06 22:56:51,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-06 22:56:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:56:51,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:51,642 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-06 22:56:51,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:51,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:51,856 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:51,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2023-11-06 22:56:51,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:51,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199906188] [2023-11-06 22:56:51,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:56:51,861 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 [2023-11-06 22:56:51,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:51,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:56:51,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:56:52,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:56:52,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:56:52,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 22:56:52,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:52,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:54,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:54,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199906188] [2023-11-06 22:56:54,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199906188] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:56:54,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:56:54,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-06 22:56:54,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943352952] [2023-11-06 22:56:54,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:56:54,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:56:54,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:54,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:56:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:56:54,452 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2023-11-06 22:56:54,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:54,679 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2023-11-06 22:56:54,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:56:54,680 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2023-11-06 22:56:54,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:54,681 INFO L225 Difference]: With dead ends: 13 [2023-11-06 22:56:54,681 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:56:54,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:56:54,683 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:54,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 13 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:56:54,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:56:54,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:54,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:56:54,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-11-06 22:56:54,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:54,686 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:56:54,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2023-11-06 22:56:54,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:56:54,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:56:54,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:56:54,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:54,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:54,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:56:55,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:56:55,008 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 163) the Hoare annotation is: (let ((.cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_17~0#1|)) (.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~state_11~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_10~0#1| (_ bv0 8))) (.cse4 (= (_ bv1 8) |ULTIMATE.start_main_~var_29~0#1|)) (.cse5 (exists ((|ULTIMATE.start_main_~var_58_arg_2~0#1| (_ BitVec 8))) (let ((.cse6 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_58_arg_2~0#1|)))))) (and (= .cse6 |ULTIMATE.start_main_~state_21~0#1|) (= .cse6 |ULTIMATE.start_main_~state_15~0#1|)))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_11~0#1|) .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse4 .cse5))) [2023-11-06 22:56:55,009 INFO L899 garLoopResultBuilder]: For program point L58-3(lines 58 163) no Hoare annotation was computed. [2023-11-06 22:56:55,009 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-06 22:56:55,009 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-06 22:56:55,009 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-06 22:56:55,009 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:56:55,010 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 23 165) the Hoare annotation is: false [2023-11-06 22:56:55,010 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:56:55,010 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:56:55,010 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-06 22:56:55,014 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-06 22:56:55,016 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:56:55,034 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-06 22:56:55,036 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-06 22:56:55,038 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-06 22:56:55,039 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-06 22:56:55,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:56:55 BoogieIcfgContainer [2023-11-06 22:56:55,040 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:56:55,044 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:56:55,044 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:56:55,045 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:56:55,045 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:48" (3/4) ... [2023-11-06 22:56:55,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:56:55,066 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-06 22:56:55,067 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-06 22:56:55,067 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:56:55,068 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:56:55,068 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:56:55,165 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:56:55,166 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:56:55,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:56:55,167 INFO L158 Benchmark]: Toolchain (without parser) took 7575.00ms. Allocated memory was 94.4MB in the beginning and 172.0MB in the end (delta: 77.6MB). Free memory was 70.1MB in the beginning and 90.1MB in the end (delta: -20.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-06 22:56:55,167 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 42.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:56:55,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.92ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 56.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:56:55,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.28ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 53.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:56:55,170 INFO L158 Benchmark]: Boogie Preprocessor took 68.45ms. Allocated memory is still 94.4MB. Free memory was 53.7MB in the beginning and 51.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:56:55,171 INFO L158 Benchmark]: RCFGBuilder took 733.93ms. Allocated memory is still 94.4MB. Free memory was 51.8MB in the beginning and 59.6MB in the end (delta: -7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:56:55,172 INFO L158 Benchmark]: TraceAbstraction took 6147.49ms. Allocated memory was 94.4MB in the beginning and 172.0MB in the end (delta: 77.6MB). Free memory was 58.6MB in the beginning and 95.3MB in the end (delta: -36.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-06 22:56:55,172 INFO L158 Benchmark]: Witness Printer took 122.13ms. Allocated memory is still 172.0MB. Free memory was 95.3MB in the beginning and 90.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:56:55,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 42.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.92ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 56.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.28ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 53.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.45ms. Allocated memory is still 94.4MB. Free memory was 53.7MB in the beginning and 51.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 733.93ms. Allocated memory is still 94.4MB. Free memory was 51.8MB in the beginning and 59.6MB in the end (delta: -7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6147.49ms. Allocated memory was 94.4MB in the beginning and 172.0MB in the end (delta: 77.6MB). Free memory was 58.6MB in the beginning and 95.3MB in the end (delta: -36.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 122.13ms. Allocated memory is still 172.0MB. Free memory was 95.3MB in the beginning and 90.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 11 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 79 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 12 QuantifiedInterpolants, 2803 SizeOfPredicates, 101 NumberOfNonLiveVariables, 468 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant [2023-11-06 22:56:55,203 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-06 22:56:55,207 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-06 22:56:55,208 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-06 22:56:55,208 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated Derived loop invariant: (((((((1 == mask_SORT_1) && (1 == state_11)) && (var_10 == 0)) && (0 == state_17)) && (1 == var_29)) || (((((1 == mask_SORT_1) && (var_10 == 0)) && (0 == state_17)) && (0 == state_11)) && (1 == var_29))) || ((((1 == mask_SORT_1) && (1 == state_11)) && (var_10 == 0)) && (1 == var_29))) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:56:55,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_319fe006-5713-4690-9eae-4ee4daac04ef/bin/uautomizer-verify-WvqO1wxjHP/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 Writing output log to file Ultimate.log Result: TRUE