./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 278b4de367ce9a5d90b72b56db7b4bfd32cdd3486043ecd2959c1028ac507b6e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:21:52,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:21:52,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:21:52,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:21:52,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:21:52,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:21:52,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:21:52,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:21:52,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:21:52,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:21:52,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:21:52,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:21:52,448 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:21:52,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:21:52,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:21:52,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:21:52,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:21:52,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:21:52,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:21:52,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:21:52,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:21:52,455 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:21:52,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:21:52,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:21:52,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:21:52,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:52,458 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:21:52,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:21:52,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:21:52,482 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:21:52,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:21:52,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:21:52,484 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:21:52,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:21:52,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:21:52,485 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:21:52,485 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_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278b4de367ce9a5d90b72b56db7b4bfd32cdd3486043ecd2959c1028ac507b6e [2023-11-12 02:21:52,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:21:52,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:21:52,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:21:52,789 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:21:52,789 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:21:52,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c [2023-11-12 02:21:56,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:21:56,396 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:21:56,397 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c [2023-11-12 02:21:56,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/data/97e9ea744/759e4b58ff074227822857c233528572/FLAG4d003b0f7 [2023-11-12 02:21:56,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/data/97e9ea744/759e4b58ff074227822857c233528572 [2023-11-12 02:21:56,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:21:56,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:21:56,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:56,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:21:56,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:21:56,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19717750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56, skipping insertion in model container [2023-11-12 02:21:56,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,464 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:21:56,627 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_641ebd31-a4fa-4109-b128-529c3c997709/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1245,1258] [2023-11-12 02:21:56,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:56,719 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:21:56,732 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_641ebd31-a4fa-4109-b128-529c3c997709/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1245,1258] [2023-11-12 02:21:56,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:56,773 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:21:56,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56 WrapperNode [2023-11-12 02:21:56,774 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:56,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:56,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:21:56,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:21:56,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,850 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 236 [2023-11-12 02:21:56,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:56,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:21:56,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:21:56,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:21:56,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:21:56,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:21:56,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:21:56,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:21:56,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (1/1) ... [2023-11-12 02:21:56,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:56,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:56,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:21:56,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:21:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:21:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:21:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:21:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:21:57,134 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:21:57,137 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:21:57,618 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:21:57,629 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:21:57,629 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:21:57,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:57 BoogieIcfgContainer [2023-11-12 02:21:57,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:21:57,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:21:57,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:21:57,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:21:57,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:21:56" (1/3) ... [2023-11-12 02:21:57,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423e44f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:57, skipping insertion in model container [2023-11-12 02:21:57,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:56" (2/3) ... [2023-11-12 02:21:57,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423e44f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:57, skipping insertion in model container [2023-11-12 02:21:57,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:57" (3/3) ... [2023-11-12 02:21:57,646 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b04.c [2023-11-12 02:21:57,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:21:57,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:21:57,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:21:57,733 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@414613e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:21:57,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:21:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:57,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 02:21:57,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:57,747 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] [2023-11-12 02:21:57,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:57,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:57,754 INFO L85 PathProgramCache]: Analyzing trace with hash 182752351, now seen corresponding path program 1 times [2023-11-12 02:21:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:57,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956305905] [2023-11-12 02:21:57,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:57,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:58,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:58,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956305905] [2023-11-12 02:21:58,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956305905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:58,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:58,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:21:58,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917094647] [2023-11-12 02:21:58,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:58,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:21:58,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:58,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:21:58,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:21:58,758 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:58,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:58,810 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2023-11-12 02:21:58,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:21:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-11-12 02:21:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:58,822 INFO L225 Difference]: With dead ends: 63 [2023-11-12 02:21:58,822 INFO L226 Difference]: Without dead ends: 36 [2023-11-12 02:21:58,825 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 [2023-11-12 02:21:58,829 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 144 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 [2023-11-12 02:21:58,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 144 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:58,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-12 02:21:58,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-12 02:21:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.542857142857143) internal successors, (54), 35 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 54 transitions. [2023-11-12 02:21:58,868 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 54 transitions. Word has length 21 [2023-11-12 02:21:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:58,869 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 54 transitions. [2023-11-12 02:21:58,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:58,870 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 54 transitions. [2023-11-12 02:21:58,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 02:21:58,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:58,873 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] [2023-11-12 02:21:58,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:21:58,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:58,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:58,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1372080629, now seen corresponding path program 1 times [2023-11-12 02:21:58,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:58,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127233389] [2023-11-12 02:21:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:58,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:59,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:59,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:59,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127233389] [2023-11-12 02:21:59,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127233389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:59,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:59,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:21:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479960552] [2023-11-12 02:21:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:59,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:21:59,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:59,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:21:59,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:21:59,097 INFO L87 Difference]: Start difference. First operand 36 states and 54 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:59,155 INFO L93 Difference]: Finished difference Result 64 states and 95 transitions. [2023-11-12 02:21:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:21:59,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2023-11-12 02:21:59,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:59,158 INFO L225 Difference]: With dead ends: 64 [2023-11-12 02:21:59,158 INFO L226 Difference]: Without dead ends: 39 [2023-11-12 02:21:59,164 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 [2023-11-12 02:21:59,167 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 141 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 [2023-11-12 02:21:59,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 141 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:59,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-12 02:21:59,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2023-11-12 02:21:59,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 37 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:59,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 56 transitions. [2023-11-12 02:21:59,186 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 56 transitions. Word has length 22 [2023-11-12 02:21:59,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:59,187 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 56 transitions. [2023-11-12 02:21:59,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:59,187 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 56 transitions. [2023-11-12 02:21:59,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 02:21:59,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:59,190 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] [2023-11-12 02:21:59,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:21:59,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:59,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash -625605831, now seen corresponding path program 1 times [2023-11-12 02:21:59,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:59,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152126490] [2023-11-12 02:21:59,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:59,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:59,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:59,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152126490] [2023-11-12 02:21:59,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152126490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:59,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:59,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:21:59,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604522543] [2023-11-12 02:21:59,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:59,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:21:59,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:59,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:21:59,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:21:59,684 INFO L87 Difference]: Start difference. First operand 38 states and 56 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:59,745 INFO L93 Difference]: Finished difference Result 72 states and 106 transitions. [2023-11-12 02:21:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:21:59,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2023-11-12 02:21:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:59,747 INFO L225 Difference]: With dead ends: 72 [2023-11-12 02:21:59,748 INFO L226 Difference]: Without dead ends: 45 [2023-11-12 02:21:59,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:21:59,750 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 65 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:59,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 104 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:59,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-12 02:21:59,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 38. [2023-11-12 02:21:59,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 37 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:59,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 55 transitions. [2023-11-12 02:21:59,757 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 55 transitions. Word has length 23 [2023-11-12 02:21:59,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:59,757 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 55 transitions. [2023-11-12 02:21:59,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:21:59,758 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2023-11-12 02:21:59,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:21:59,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:59,760 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] [2023-11-12 02:21:59,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:21:59,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:59,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:59,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1007031719, now seen corresponding path program 1 times [2023-11-12 02:21:59,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:59,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804568902] [2023-11-12 02:21:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:59,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:00,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:00,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804568902] [2023-11-12 02:22:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804568902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:00,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:00,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:22:00,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322766] [2023-11-12 02:22:00,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:00,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:22:00,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:00,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:22:00,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:22:00,563 INFO L87 Difference]: Start difference. First operand 38 states and 55 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:01,262 INFO L93 Difference]: Finished difference Result 129 states and 184 transitions. [2023-11-12 02:22:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:22:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 24 [2023-11-12 02:22:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:01,265 INFO L225 Difference]: With dead ends: 129 [2023-11-12 02:22:01,265 INFO L226 Difference]: Without dead ends: 102 [2023-11-12 02:22:01,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:22:01,267 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 209 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:01,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 384 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:22:01,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-12 02:22:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 47. [2023-11-12 02:22:01,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 46 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:01,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2023-11-12 02:22:01,281 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 24 [2023-11-12 02:22:01,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:01,282 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2023-11-12 02:22:01,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2023-11-12 02:22:01,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:22:01,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:01,285 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] [2023-11-12 02:22:01,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:22:01,285 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:01,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:01,286 INFO L85 PathProgramCache]: Analyzing trace with hash 767975643, now seen corresponding path program 1 times [2023-11-12 02:22:01,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:01,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109452783] [2023-11-12 02:22:01,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:01,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:01,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:01,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109452783] [2023-11-12 02:22:01,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109452783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:01,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:01,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:22:01,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43537960] [2023-11-12 02:22:01,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:01,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:01,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:01,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:01,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:01,586 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:01,661 INFO L93 Difference]: Finished difference Result 123 states and 174 transitions. [2023-11-12 02:22:01,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:22:01,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2023-11-12 02:22:01,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:01,663 INFO L225 Difference]: With dead ends: 123 [2023-11-12 02:22:01,663 INFO L226 Difference]: Without dead ends: 87 [2023-11-12 02:22:01,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:22:01,665 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 93 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:01,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 150 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:01,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-12 02:22:01,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 53. [2023-11-12 02:22:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 52 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2023-11-12 02:22:01,674 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 24 [2023-11-12 02:22:01,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:01,674 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2023-11-12 02:22:01,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:01,674 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2023-11-12 02:22:01,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:22:01,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:01,676 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] [2023-11-12 02:22:01,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:22:01,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:01,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:01,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1161002653, now seen corresponding path program 1 times [2023-11-12 02:22:01,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:01,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512060698] [2023-11-12 02:22:01,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:01,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:02,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:02,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512060698] [2023-11-12 02:22:02,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512060698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:02,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:02,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:22:02,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069943501] [2023-11-12 02:22:02,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:02,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:22:02,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:02,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:22:02,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:22:02,053 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:02,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:02,381 INFO L93 Difference]: Finished difference Result 157 states and 214 transitions. [2023-11-12 02:22:02,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:22:02,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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 24 [2023-11-12 02:22:02,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:02,383 INFO L225 Difference]: With dead ends: 157 [2023-11-12 02:22:02,383 INFO L226 Difference]: Without dead ends: 115 [2023-11-12 02:22:02,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:22:02,384 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 226 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:02,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 302 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:02,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-12 02:22:02,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 55. [2023-11-12 02:22:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 54 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:02,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions. [2023-11-12 02:22:02,394 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 24 [2023-11-12 02:22:02,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:02,394 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 76 transitions. [2023-11-12 02:22:02,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:02,395 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2023-11-12 02:22:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:22:02,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:02,396 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] [2023-11-12 02:22:02,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:22:02,397 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:02,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:02,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1039513811, now seen corresponding path program 1 times [2023-11-12 02:22:02,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:02,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426765799] [2023-11-12 02:22:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:02,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:02,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:02,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:02,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426765799] [2023-11-12 02:22:02,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426765799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:02,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:02,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:22:02,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860132660] [2023-11-12 02:22:02,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:02,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:02,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:02,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:02,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:02,580 INFO L87 Difference]: Start difference. First operand 55 states and 76 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:02,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:02,723 INFO L93 Difference]: Finished difference Result 145 states and 196 transitions. [2023-11-12 02:22:02,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:22:02,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2023-11-12 02:22:02,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:02,725 INFO L225 Difference]: With dead ends: 145 [2023-11-12 02:22:02,725 INFO L226 Difference]: Without dead ends: 101 [2023-11-12 02:22:02,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:22:02,726 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 110 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:02,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 80 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:02,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-12 02:22:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 64. [2023-11-12 02:22:02,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 63 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:02,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 89 transitions. [2023-11-12 02:22:02,737 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 89 transitions. Word has length 25 [2023-11-12 02:22:02,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:02,737 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 89 transitions. [2023-11-12 02:22:02,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:02,738 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 89 transitions. [2023-11-12 02:22:02,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:22:02,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:02,739 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] [2023-11-12 02:22:02,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:22:02,740 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:02,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:02,740 INFO L85 PathProgramCache]: Analyzing trace with hash 452707797, now seen corresponding path program 1 times [2023-11-12 02:22:02,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:02,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231610132] [2023-11-12 02:22:02,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:02,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:02,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:02,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:02,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231610132] [2023-11-12 02:22:02,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231610132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:02,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:02,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:22:02,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541702708] [2023-11-12 02:22:02,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:02,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:02,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:02,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:02,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:02,946 INFO L87 Difference]: Start difference. First operand 64 states and 89 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:02,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:02,999 INFO L93 Difference]: Finished difference Result 134 states and 180 transitions. [2023-11-12 02:22:02,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:22:03,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2023-11-12 02:22:03,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:03,001 INFO L225 Difference]: With dead ends: 134 [2023-11-12 02:22:03,001 INFO L226 Difference]: Without dead ends: 88 [2023-11-12 02:22:03,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:22:03,003 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 102 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:03,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 135 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-12 02:22:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62. [2023-11-12 02:22:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 61 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 85 transitions. [2023-11-12 02:22:03,013 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 85 transitions. Word has length 25 [2023-11-12 02:22:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:03,013 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 85 transitions. [2023-11-12 02:22:03,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 85 transitions. [2023-11-12 02:22:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:22:03,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:03,015 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] [2023-11-12 02:22:03,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:22:03,016 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:03,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:03,016 INFO L85 PathProgramCache]: Analyzing trace with hash 896033325, now seen corresponding path program 1 times [2023-11-12 02:22:03,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:03,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549071424] [2023-11-12 02:22:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:03,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:03,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:03,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549071424] [2023-11-12 02:22:03,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549071424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:03,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:03,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:22:03,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769273323] [2023-11-12 02:22:03,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:03,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:22:03,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:22:03,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:03,211 INFO L87 Difference]: Start difference. First operand 62 states and 85 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:03,327 INFO L93 Difference]: Finished difference Result 119 states and 159 transitions. [2023-11-12 02:22:03,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:22:03,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2023-11-12 02:22:03,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:03,328 INFO L225 Difference]: With dead ends: 119 [2023-11-12 02:22:03,328 INFO L226 Difference]: Without dead ends: 72 [2023-11-12 02:22:03,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:22:03,330 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 82 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:03,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 80 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:03,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-12 02:22:03,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 59. [2023-11-12 02:22:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 58 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2023-11-12 02:22:03,341 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 25 [2023-11-12 02:22:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:03,341 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2023-11-12 02:22:03,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-11-12 02:22:03,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 02:22:03,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:03,348 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-12 02:22:03,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:22:03,348 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:03,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:03,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1763086713, now seen corresponding path program 1 times [2023-11-12 02:22:03,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:03,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831737493] [2023-11-12 02:22:03,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:03,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:03,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:03,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831737493] [2023-11-12 02:22:03,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831737493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:03,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709885087] [2023-11-12 02:22:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:03,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:03,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:03,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:03,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:22:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:03,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-12 02:22:03,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:04,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:04,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709885087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:04,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:22:04,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2023-11-12 02:22:04,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182346156] [2023-11-12 02:22:04,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:04,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:22:04,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:04,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:22:04,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:22:04,311 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:04,539 INFO L93 Difference]: Finished difference Result 116 states and 154 transitions. [2023-11-12 02:22:04,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:22:04,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 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 41 [2023-11-12 02:22:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:04,541 INFO L225 Difference]: With dead ends: 116 [2023-11-12 02:22:04,541 INFO L226 Difference]: Without dead ends: 72 [2023-11-12 02:22:04,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:22:04,543 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 55 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:04,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 146 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-12 02:22:04,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2023-11-12 02:22:04,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 70 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 92 transitions. [2023-11-12 02:22:04,553 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 92 transitions. Word has length 41 [2023-11-12 02:22:04,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:04,554 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 92 transitions. [2023-11-12 02:22:04,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 92 transitions. [2023-11-12 02:22:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 02:22:04,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:04,556 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-12 02:22:04,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:04,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:22:04,763 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:04,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:04,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2110556693, now seen corresponding path program 1 times [2023-11-12 02:22:04,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:04,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183833218] [2023-11-12 02:22:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:04,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:05,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:05,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183833218] [2023-11-12 02:22:05,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183833218] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:05,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259993107] [2023-11-12 02:22:05,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:05,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:05,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:05,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:05,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:22:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:05,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-12 02:22:05,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:06,010 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:07,715 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:07,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259993107] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:07,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:07,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 13] total 28 [2023-11-12 02:22:07,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961169385] [2023-11-12 02:22:07,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:07,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-12 02:22:07,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:07,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-12 02:22:07,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2023-11-12 02:22:07,719 INFO L87 Difference]: Start difference. First operand 71 states and 92 transitions. Second operand has 28 states, 28 states have (on average 3.5714285714285716) internal successors, (100), 28 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:09,524 INFO L93 Difference]: Finished difference Result 187 states and 243 transitions. [2023-11-12 02:22:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-12 02:22:09,525 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.5714285714285716) internal successors, (100), 28 states have internal predecessors, (100), 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 42 [2023-11-12 02:22:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:09,527 INFO L225 Difference]: With dead ends: 187 [2023-11-12 02:22:09,527 INFO L226 Difference]: Without dead ends: 143 [2023-11-12 02:22:09,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=437, Invalid=1819, Unknown=0, NotChecked=0, Total=2256 [2023-11-12 02:22:09,531 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 394 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:09,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 513 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 02:22:09,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-12 02:22:09,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 102. [2023-11-12 02:22:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.306930693069307) internal successors, (132), 101 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:09,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2023-11-12 02:22:09,547 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 42 [2023-11-12 02:22:09,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:09,549 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2023-11-12 02:22:09,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.5714285714285716) internal successors, (100), 28 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:09,550 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2023-11-12 02:22:09,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 02:22:09,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:09,551 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:09,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:09,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:22:09,757 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:09,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:09,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1967076207, now seen corresponding path program 1 times [2023-11-12 02:22:09,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:09,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395253917] [2023-11-12 02:22:09,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:09,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:10,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:10,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395253917] [2023-11-12 02:22:10,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395253917] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:10,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303655465] [2023-11-12 02:22:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:10,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:10,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:10,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:10,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:22:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:10,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-12 02:22:10,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:10,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:11,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303655465] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:11,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:11,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 24 [2023-11-12 02:22:11,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413836370] [2023-11-12 02:22:11,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:11,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-12 02:22:11,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:11,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-12 02:22:11,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:22:11,391 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand has 24 states, 24 states have (on average 4.0) internal successors, (96), 24 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:11,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:11,905 INFO L93 Difference]: Finished difference Result 198 states and 255 transitions. [2023-11-12 02:22:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:22:11,905 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.0) internal successors, (96), 24 states have internal predecessors, (96), 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 42 [2023-11-12 02:22:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:11,906 INFO L225 Difference]: With dead ends: 198 [2023-11-12 02:22:11,906 INFO L226 Difference]: Without dead ends: 123 [2023-11-12 02:22:11,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=886, Unknown=0, NotChecked=0, Total=1122 [2023-11-12 02:22:11,908 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 190 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:11,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 302 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:22:11,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-12 02:22:11,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 105. [2023-11-12 02:22:11,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.2980769230769231) internal successors, (135), 104 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 135 transitions. [2023-11-12 02:22:11,919 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 135 transitions. Word has length 42 [2023-11-12 02:22:11,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:11,919 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 135 transitions. [2023-11-12 02:22:11,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.0) internal successors, (96), 24 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:11,920 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2023-11-12 02:22:11,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 02:22:11,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:11,921 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:11,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:12,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:22:12,127 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:12,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash -456557623, now seen corresponding path program 1 times [2023-11-12 02:22:12,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:12,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906430345] [2023-11-12 02:22:12,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:12,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:13,570 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:13,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:13,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906430345] [2023-11-12 02:22:13,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906430345] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:13,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044985020] [2023-11-12 02:22:13,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:13,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:13,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:13,577 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:13,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:22:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:13,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 83 conjunts are in the unsatisfiable core [2023-11-12 02:22:13,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:14,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:15,508 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:15,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044985020] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:15,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:15,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15, 12] total 33 [2023-11-12 02:22:15,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458526245] [2023-11-12 02:22:15,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:15,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-12 02:22:15,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:15,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-12 02:22:15,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2023-11-12 02:22:15,516 INFO L87 Difference]: Start difference. First operand 105 states and 135 transitions. Second operand has 33 states, 33 states have (on average 4.818181818181818) internal successors, (159), 33 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:25,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:25,059 INFO L93 Difference]: Finished difference Result 411 states and 528 transitions. [2023-11-12 02:22:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-11-12 02:22:25,060 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.818181818181818) internal successors, (159), 33 states have internal predecessors, (159), 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 58 [2023-11-12 02:22:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:25,062 INFO L225 Difference]: With dead ends: 411 [2023-11-12 02:22:25,062 INFO L226 Difference]: Without dead ends: 367 [2023-11-12 02:22:25,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3695 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=2273, Invalid=12247, Unknown=0, NotChecked=0, Total=14520 [2023-11-12 02:22:25,069 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 867 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:25,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 817 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-12 02:22:25,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-12 02:22:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 100. [2023-11-12 02:22:25,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2727272727272727) internal successors, (126), 99 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 126 transitions. [2023-11-12 02:22:25,081 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 126 transitions. Word has length 58 [2023-11-12 02:22:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:25,081 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 126 transitions. [2023-11-12 02:22:25,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.818181818181818) internal successors, (159), 33 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2023-11-12 02:22:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 02:22:25,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:25,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:25,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:25,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 02:22:25,290 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:25,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:25,290 INFO L85 PathProgramCache]: Analyzing trace with hash -600038109, now seen corresponding path program 1 times [2023-11-12 02:22:25,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:25,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627598861] [2023-11-12 02:22:25,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:25,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:26,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:26,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627598861] [2023-11-12 02:22:26,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627598861] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:22:26,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434289515] [2023-11-12 02:22:26,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:26,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:22:26,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:26,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:22:26,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:22:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:26,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-12 02:22:26,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:27,291 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 37 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:27,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 34 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:28,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434289515] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:28,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:22:28,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 31 [2023-11-12 02:22:28,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164869471] [2023-11-12 02:22:28,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:28,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-12 02:22:28,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:28,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-12 02:22:28,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=791, Unknown=0, NotChecked=0, Total=930 [2023-11-12 02:22:28,425 INFO L87 Difference]: Start difference. First operand 100 states and 126 transitions. Second operand has 31 states, 31 states have (on average 5.064516129032258) internal successors, (157), 31 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:31,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:31,882 INFO L93 Difference]: Finished difference Result 231 states and 289 transitions. [2023-11-12 02:22:31,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-12 02:22:31,883 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 5.064516129032258) internal successors, (157), 31 states have internal predecessors, (157), 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 58 [2023-11-12 02:22:31,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:31,886 INFO L225 Difference]: With dead ends: 231 [2023-11-12 02:22:31,886 INFO L226 Difference]: Without dead ends: 158 [2023-11-12 02:22:31,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1016, Invalid=3954, Unknown=0, NotChecked=0, Total=4970 [2023-11-12 02:22:31,892 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 307 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:31,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 838 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-12 02:22:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-12 02:22:31,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 78. [2023-11-12 02:22:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.2207792207792207) internal successors, (94), 77 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:31,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 94 transitions. [2023-11-12 02:22:31,905 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 94 transitions. Word has length 58 [2023-11-12 02:22:31,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:31,905 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 94 transitions. [2023-11-12 02:22:31,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.064516129032258) internal successors, (157), 31 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:31,906 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 94 transitions. [2023-11-12 02:22:31,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-12 02:22:31,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:31,908 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:31,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:32,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-12 02:22:32,115 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:32,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash -302528951, now seen corresponding path program 1 times [2023-11-12 02:22:32,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:32,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312366840] [2023-11-12 02:22:32,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:32,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:32,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:22:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:32,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:22:32,483 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:22:32,484 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:22:32,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 02:22:32,490 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:32,494 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:22:32,556 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:22:32,557 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 02:22:32,557 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-12 02:22:32,558 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-12 02:22:32,558 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-12 02:22:32,558 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 02:22:32,560 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-12 02:22:32,562 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-12 02:22:32,564 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-12 02:22:32,565 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-12 02:22:32,567 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-12 02:22:32,570 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-12 02:22:32,573 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-12 02:22:32,575 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-12 02:22:32,577 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-12 02:22:32,579 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-12 02:22:32,580 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-12 02:22:32,582 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-12 02:22:32,585 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-12 02:22:32,586 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-12 02:22:32,587 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-12 02:22:32,588 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-12 02:22:32,589 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-12 02:22:32,589 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 02:22:32,590 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 02:22:32,590 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 02:22:32,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:22:32 BoogieIcfgContainer [2023-11-12 02:22:32,614 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:22:32,615 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:22:32,615 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:22:32,615 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:22:32,615 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:57" (3/4) ... [2023-11-12 02:22:32,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:22:32,619 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:22:32,619 INFO L158 Benchmark]: Toolchain (without parser) took 36192.78ms. Allocated memory was 157.3MB in the beginning and 413.1MB in the end (delta: 255.9MB). Free memory was 98.3MB in the beginning and 242.6MB in the end (delta: -144.3MB). Peak memory consumption was 113.8MB. Max. memory is 16.1GB. [2023-11-12 02:22:32,619 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:32,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.79ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 127.8MB in the end (delta: -29.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-11-12 02:22:32,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.20ms. Allocated memory is still 157.3MB. Free memory was 127.8MB in the beginning and 123.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:22:32,622 INFO L158 Benchmark]: Boogie Preprocessor took 45.65ms. Allocated memory is still 157.3MB. Free memory was 123.1MB in the beginning and 120.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:22:32,622 INFO L158 Benchmark]: RCFGBuilder took 733.74ms. Allocated memory is still 157.3MB. Free memory was 120.9MB in the beginning and 97.9MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 02:22:32,623 INFO L158 Benchmark]: TraceAbstraction took 34979.75ms. Allocated memory was 157.3MB in the beginning and 413.1MB in the end (delta: 255.9MB). Free memory was 97.3MB in the beginning and 242.6MB in the end (delta: -145.3MB). Peak memory consumption was 110.0MB. Max. memory is 16.1GB. [2023-11-12 02:22:32,623 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 413.1MB. Free memory is still 242.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:32,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.79ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 127.8MB in the end (delta: -29.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.20ms. Allocated memory is still 157.3MB. Free memory was 127.8MB in the beginning and 123.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.65ms. Allocated memory is still 157.3MB. Free memory was 123.1MB in the beginning and 120.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 733.74ms. Allocated memory is still 157.3MB. Free memory was 120.9MB in the beginning and 97.9MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 34979.75ms. Allocated memory was 157.3MB in the beginning and 413.1MB in the end (delta: 255.9MB). Free memory was 97.3MB in the beginning and 242.6MB in the end (delta: -145.3MB). Peak memory consumption was 110.0MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 413.1MB. Free memory is still 242.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L32] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 32); [L33] const SORT_12 msb_SORT_12 = (SORT_12)1 << (32 - 1); [L35] const SORT_4 var_8 = 0; [L36] const SORT_12 var_14 = 1; [L37] const SORT_1 var_25 = 1; [L38] const SORT_1 var_42 = 0; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L42] SORT_4 input_5; [L43] SORT_1 input_6; [L44] SORT_1 input_7; [L45] SORT_4 input_29; [L46] SORT_4 input_31; [L47] SORT_4 input_33; [L48] SORT_4 input_35; [L49] SORT_4 input_37; [L50] SORT_4 input_39; [L52] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, var_14=1, var_25=1, var_42=0, var_8=0] [L52] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L53] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_9=0, var_14=1, var_25=1, var_42=0, var_8=0] [L53] SORT_4 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L54] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_9=0, var_14=1, var_25=1, var_42=0, var_8=0] [L54] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_4 init_10_arg_1 = var_8; [L57] state_9 = init_10_arg_1 [L58] SORT_4 init_18_arg_1 = var_8; [L59] state_17 = init_18_arg_1 [L60] SORT_1 init_44_arg_1 = var_42; [L61] state_43 = init_44_arg_1 VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_14=1, var_25=1, var_42=0, var_8=0] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_5 = __VERIFIER_nondet_uchar() [L67] input_6 = __VERIFIER_nondet_uchar() [L68] input_7 = __VERIFIER_nondet_uchar() [L69] input_29 = __VERIFIER_nondet_uchar() [L70] input_31 = __VERIFIER_nondet_uchar() [L71] input_33 = __VERIFIER_nondet_uchar() [L72] input_35 = __VERIFIER_nondet_uchar() [L73] input_37 = __VERIFIER_nondet_uchar() [L74] input_39 = __VERIFIER_nondet_uchar() [L77] SORT_4 var_11_arg_0 = state_9; [L78] SORT_1 var_11 = var_11_arg_0 >> 7; [L79] SORT_1 var_13_arg_0 = var_11; VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13_arg_0=0, var_14=1, var_25=1, var_42=0, var_8=0] [L80] EXPR var_13_arg_0 & mask_SORT_1 VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13_arg_0=0, var_14=1, var_25=1, var_42=0, var_8=0] [L80] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L81] SORT_12 var_13 = var_13_arg_0; [L82] SORT_12 var_15_arg_0 = var_13; [L83] SORT_12 var_15_arg_1 = var_14; [L84] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L85] SORT_1 var_16_arg_0 = var_15; [L86] SORT_1 var_16 = ~var_16_arg_0; [L87] SORT_4 var_19_arg_0 = state_17; [L88] SORT_1 var_19 = var_19_arg_0 >> 7; [L89] SORT_1 var_20_arg_0 = var_19; VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20_arg_0=0, var_25=1, var_42=0, var_8=0] [L90] EXPR var_20_arg_0 & mask_SORT_1 VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20_arg_0=0, var_25=1, var_42=0, var_8=0] [L90] var_20_arg_0 = var_20_arg_0 & mask_SORT_1 [L91] SORT_12 var_20 = var_20_arg_0; [L92] SORT_12 var_21_arg_0 = var_20; [L93] SORT_12 var_21_arg_1 = var_14; [L94] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L95] SORT_1 var_22_arg_0 = var_16; [L96] SORT_1 var_22_arg_1 = var_21; VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_42=0, var_8=0] [L97] EXPR var_22_arg_0 | var_22_arg_1 VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_42=0, var_8=0] [L97] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L98] SORT_1 var_26_arg_0 = var_22; [L99] SORT_1 var_26 = ~var_26_arg_0; [L100] SORT_1 var_27_arg_0 = var_25; [L101] SORT_1 var_27_arg_1 = var_26; VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_8=0] [L102] EXPR var_27_arg_0 & var_27_arg_1 VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_8=0] [L102] SORT_1 var_27 = var_27_arg_0 & var_27_arg_1; [L103] EXPR var_27 & mask_SORT_1 VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_8=0] [L103] var_27 = var_27 & mask_SORT_1 [L104] SORT_1 bad_28_arg_0 = var_27; [L105] CALL __VERIFIER_assert(!(bad_28_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L105] RET __VERIFIER_assert(!(bad_28_arg_0)) [L107] SORT_1 var_45_arg_0 = state_43; [L108] SORT_4 var_45_arg_1 = input_5; [L109] SORT_4 var_45_arg_2 = state_9; [L110] SORT_4 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L111] SORT_4 next_46_arg_1 = var_45; [L112] SORT_1 var_47_arg_0 = state_43; [L113] SORT_4 var_47_arg_1 = input_5; [L114] SORT_4 var_47_arg_2 = state_17; [L115] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L116] SORT_4 next_48_arg_1 = var_47; [L117] SORT_1 var_49_arg_0 = state_43; [L118] SORT_1 var_49_arg_1 = var_42; [L119] SORT_1 var_49_arg_2 = var_25; [L120] SORT_1 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, input_5=9, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L121] EXPR var_49 & mask_SORT_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, input_5=9, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, state_17=0, state_43=0, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L121] var_49 = var_49 & mask_SORT_1 [L122] SORT_1 next_50_arg_1 = var_49; [L124] state_9 = next_46_arg_1 [L125] state_17 = next_48_arg_1 [L126] state_43 = next_50_arg_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, input_5=9, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_5 = __VERIFIER_nondet_uchar() [L67] input_6 = __VERIFIER_nondet_uchar() [L68] input_7 = __VERIFIER_nondet_uchar() [L69] input_29 = __VERIFIER_nondet_uchar() [L70] input_31 = __VERIFIER_nondet_uchar() [L71] input_33 = __VERIFIER_nondet_uchar() [L72] input_35 = __VERIFIER_nondet_uchar() [L73] input_37 = __VERIFIER_nondet_uchar() [L74] input_39 = __VERIFIER_nondet_uchar() [L77] SORT_4 var_11_arg_0 = state_9; [L78] SORT_1 var_11 = var_11_arg_0 >> 7; [L79] SORT_1 var_13_arg_0 = var_11; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L80] EXPR var_13_arg_0 & mask_SORT_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L80] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L81] SORT_12 var_13 = var_13_arg_0; [L82] SORT_12 var_15_arg_0 = var_13; [L83] SORT_12 var_15_arg_1 = var_14; [L84] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L85] SORT_1 var_16_arg_0 = var_15; [L86] SORT_1 var_16 = ~var_16_arg_0; [L87] SORT_4 var_19_arg_0 = state_17; [L88] SORT_1 var_19 = var_19_arg_0 >> 7; [L89] SORT_1 var_20_arg_0 = var_19; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L90] EXPR var_20_arg_0 & mask_SORT_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L90] var_20_arg_0 = var_20_arg_0 & mask_SORT_1 [L91] SORT_12 var_20 = var_20_arg_0; [L92] SORT_12 var_21_arg_0 = var_20; [L93] SORT_12 var_21_arg_1 = var_14; [L94] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L95] SORT_1 var_22_arg_0 = var_16; [L96] SORT_1 var_22_arg_1 = var_21; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L97] EXPR var_22_arg_0 | var_22_arg_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L97] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L98] SORT_1 var_26_arg_0 = var_22; [L99] SORT_1 var_26 = ~var_26_arg_0; [L100] SORT_1 var_27_arg_0 = var_25; [L101] SORT_1 var_27_arg_1 = var_26; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L102] EXPR var_27_arg_0 & var_27_arg_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L102] SORT_1 var_27 = var_27_arg_0 & var_27_arg_1; [L103] EXPR var_27 & mask_SORT_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=0, next_48_arg_1=0, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=0, var_45_arg_0=0, var_45_arg_1=9, var_45_arg_2=0, var_47=0, var_47_arg_0=0, var_47_arg_1=9, var_47_arg_2=0, var_49=1, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L103] var_27 = var_27 & mask_SORT_1 [L104] SORT_1 bad_28_arg_0 = var_27; [L105] CALL __VERIFIER_assert(!(bad_28_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L105] RET __VERIFIER_assert(!(bad_28_arg_0)) [L107] SORT_1 var_45_arg_0 = state_43; [L108] SORT_4 var_45_arg_1 = input_5; [L109] SORT_4 var_45_arg_2 = state_9; [L110] SORT_4 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L111] SORT_4 next_46_arg_1 = var_45; [L112] SORT_1 var_47_arg_0 = state_43; [L113] SORT_4 var_47_arg_1 = input_5; [L114] SORT_4 var_47_arg_2 = state_17; [L115] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L116] SORT_4 next_48_arg_1 = var_47; [L117] SORT_1 var_49_arg_0 = state_43; [L118] SORT_1 var_49_arg_1 = var_42; [L119] SORT_1 var_49_arg_2 = var_25; [L120] SORT_1 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, input_5=255, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L121] EXPR var_49 & mask_SORT_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, input_5=255, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=1, state_17=0, state_43=1, state_9=0, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L121] var_49 = var_49 & mask_SORT_1 [L122] SORT_1 next_50_arg_1 = var_49; [L124] state_9 = next_46_arg_1 [L125] state_17 = next_48_arg_1 [L126] state_43 = next_50_arg_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, input_5=255, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=0, var_11_arg_0=0, var_13=0, var_13_arg_0=0, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_5 = __VERIFIER_nondet_uchar() [L67] input_6 = __VERIFIER_nondet_uchar() [L68] input_7 = __VERIFIER_nondet_uchar() [L69] input_29 = __VERIFIER_nondet_uchar() [L70] input_31 = __VERIFIER_nondet_uchar() [L71] input_33 = __VERIFIER_nondet_uchar() [L72] input_35 = __VERIFIER_nondet_uchar() [L73] input_37 = __VERIFIER_nondet_uchar() [L74] input_39 = __VERIFIER_nondet_uchar() [L77] SORT_4 var_11_arg_0 = state_9; [L78] SORT_1 var_11 = var_11_arg_0 >> 7; [L79] SORT_1 var_13_arg_0 = var_11; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=0, var_13_arg_0=1, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L80] EXPR var_13_arg_0 & mask_SORT_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=0, var_13_arg_0=1, var_14=1, var_15=0, var_15_arg_0=0, var_15_arg_1=1, var_16=255, var_16_arg_0=0, var_19=0, var_19_arg_0=0, var_20=0, var_20_arg_0=0, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L80] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L81] SORT_12 var_13 = var_13_arg_0; [L82] SORT_12 var_15_arg_0 = var_13; [L83] SORT_12 var_15_arg_1 = var_14; [L84] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L85] SORT_1 var_16_arg_0 = var_15; [L86] SORT_1 var_16 = ~var_16_arg_0; [L87] SORT_4 var_19_arg_0 = state_17; [L88] SORT_1 var_19 = var_19_arg_0 >> 7; [L89] SORT_1 var_20_arg_0 = var_19; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=1, var_13_arg_0=1, var_14=1, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_16=254, var_16_arg_0=1, var_19=1, var_19_arg_0=255, var_20=0, var_20_arg_0=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L90] EXPR var_20_arg_0 & mask_SORT_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=1, var_13_arg_0=1, var_14=1, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_16=254, var_16_arg_0=1, var_19=1, var_19_arg_0=255, var_20=0, var_20_arg_0=1, var_21=0, var_21_arg_0=0, var_21_arg_1=1, var_22=255, var_22_arg_0=255, var_22_arg_1=0, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L90] var_20_arg_0 = var_20_arg_0 & mask_SORT_1 [L91] SORT_12 var_20 = var_20_arg_0; [L92] SORT_12 var_21_arg_0 = var_20; [L93] SORT_12 var_21_arg_1 = var_14; [L94] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L95] SORT_1 var_22_arg_0 = var_16; [L96] SORT_1 var_22_arg_1 = var_21; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=1, var_13_arg_0=1, var_14=1, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_16=254, var_16_arg_0=1, var_19=1, var_19_arg_0=255, var_20=1, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=1, var_22=255, var_22_arg_0=254, var_22_arg_1=1, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L97] EXPR var_22_arg_0 | var_22_arg_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=1, var_13_arg_0=1, var_14=1, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_16=254, var_16_arg_0=1, var_19=1, var_19_arg_0=255, var_20=1, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=1, var_22=255, var_22_arg_0=254, var_22_arg_1=1, var_25=1, var_26=0, var_26_arg_0=255, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L97] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L98] SORT_1 var_26_arg_0 = var_22; [L99] SORT_1 var_26 = ~var_26_arg_0; [L100] SORT_1 var_27_arg_0 = var_25; [L101] SORT_1 var_27_arg_1 = var_26; VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=1, var_13_arg_0=1, var_14=1, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_16=254, var_16_arg_0=1, var_19=1, var_19_arg_0=255, var_20=1, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=1, var_22=254, var_22_arg_0=254, var_22_arg_1=1, var_25=1, var_26=1, var_26_arg_0=254, var_27=0, var_27_arg_0=1, var_27_arg_1=1, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L102] EXPR var_27_arg_0 & var_27_arg_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=1, var_13_arg_0=1, var_14=1, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_16=254, var_16_arg_0=1, var_19=1, var_19_arg_0=255, var_20=1, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=1, var_22=254, var_22_arg_0=254, var_22_arg_1=1, var_25=1, var_26=1, var_26_arg_0=254, var_27=0, var_27_arg_0=1, var_27_arg_1=1, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L102] SORT_1 var_27 = var_27_arg_0 & var_27_arg_1; [L103] EXPR var_27 & mask_SORT_1 VAL [bad_28_arg_0=0, init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_12=4294967295, mask_SORT_1=1, mask_SORT_4=255, msb_SORT_12=2147483648, msb_SORT_1=1, msb_SORT_4=128, next_46_arg_1=255, next_48_arg_1=255, next_50_arg_1=0, state_17=255, state_43=0, state_9=255, var_11=1, var_11_arg_0=255, var_13=1, var_13_arg_0=1, var_14=1, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_16=254, var_16_arg_0=1, var_19=1, var_19_arg_0=255, var_20=1, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=1, var_22=254, var_22_arg_0=254, var_22_arg_1=1, var_25=1, var_26=1, var_26_arg_0=254, var_27=1, var_27_arg_0=1, var_27_arg_1=1, var_42=0, var_45=255, var_45_arg_0=1, var_45_arg_1=255, var_45_arg_2=0, var_47=255, var_47_arg_0=1, var_47_arg_1=255, var_47_arg_2=0, var_49=0, var_49_arg_0=1, var_49_arg_1=0, var_49_arg_2=1, var_8=0] [L103] var_27 = var_27 & mask_SORT_1 [L104] SORT_1 bad_28_arg_0 = var_27; [L105] CALL __VERIFIER_assert(!(bad_28_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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.8s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2702 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2702 mSDsluCounter, 4136 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3488 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4126 IncrementalHoareTripleChecker+Invalid, 4196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 648 mSDtfsCounter, 4126 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 774 GetRequests, 428 SyntacticMatches, 2 SemanticMatches, 344 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5469 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=12, InterpolantAutomatonStates: 243, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 640 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 754 NumberOfCodeBlocks, 754 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 872 ConstructedInterpolants, 1 QuantifiedInterpolants, 7026 SizeOfPredicates, 104 NumberOfNonLiveVariables, 1718 ConjunctsInSsa, 288 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 281/356 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:22:32,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 278b4de367ce9a5d90b72b56db7b4bfd32cdd3486043ecd2959c1028ac507b6e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:22:35,346 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:22:35,484 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-12 02:22:35,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:22:35,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:22:35,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:22:35,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:22:35,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:22:35,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:22:35,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:22:35,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:22:35,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:22:35,550 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:22:35,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:22:35,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:22:35,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:22:35,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:22:35,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:22:35,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:22:35,556 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:22:35,556 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:22:35,557 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:22:35,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:22:35,558 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:22:35,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:22:35,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:22:35,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:22:35,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:35,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:22:35,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:22:35,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:22:35,563 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:22:35,564 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:22:35,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:22:35,565 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:22:35,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:22:35,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:22:35,566 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:22:35,566 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:22:35,567 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_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278b4de367ce9a5d90b72b56db7b4bfd32cdd3486043ecd2959c1028ac507b6e [2023-11-12 02:22:36,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:22:36,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:22:36,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:22:36,056 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:22:36,056 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:22:36,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_641ebd31-a4fa-4109-b128-529c3c997709/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c