./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu --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 16f8726a4add15d0bf2494bd44888be53eb7bc01110882b6fc03ef148c6d9055 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:02,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:02,677 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 08:06:02,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:02,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:02,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:02,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:02,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:02,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:02,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:02,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:02,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:02,752 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:02,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:02,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:06:02,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:02,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:02,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:06:02,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:02,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:06:02,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:02,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:02,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:02,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:02,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:02,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:02,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:02,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:02,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:06:02,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:02,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:06:02,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:02,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:06:02,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:02,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:02,766 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:02,766 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_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16f8726a4add15d0bf2494bd44888be53eb7bc01110882b6fc03ef148c6d9055 [2023-11-19 08:06:03,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:03,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:03,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:03,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:03,105 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:03,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2023-11-19 08:06:06,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:06,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:06,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2023-11-19 08:06:06,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/data/b77a6fef6/c475c68f47d64fd183778cf3f01c6973/FLAGfaabd8242 [2023-11-19 08:06:06,510 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/data/b77a6fef6/c475c68f47d64fd183778cf3f01c6973 [2023-11-19 08:06:06,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:06,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:06,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:06,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:06,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:06,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14722478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06, skipping insertion in model container [2023-11-19 08:06:06,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,575 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:06,718 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_49e37c3f-ced5-4db6-8091-e472c241e737/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1248,1261] [2023-11-19 08:06:06,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:06,799 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:06,810 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1248,1261] [2023-11-19 08:06:06,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:06,883 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:06,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06 WrapperNode [2023-11-19 08:06:06,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:06,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:06,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:06,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:06,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,986 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 292 [2023-11-19 08:06:06,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:06,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:06,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:06,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:06,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:07,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:07,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:07,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:07,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:07,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:07,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:07,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:07,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:07,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:07,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:07,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:07,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:07,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:07,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:07,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:06:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:07,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:07,332 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:07,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:07,953 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:07,962 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:07,962 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:06:07,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:07 BoogieIcfgContainer [2023-11-19 08:06:07,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:07,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:06:08,015 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:06:08,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:06:08,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:06" (1/3) ... [2023-11-19 08:06:08,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa55590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:08, skipping insertion in model container [2023-11-19 08:06:08,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (2/3) ... [2023-11-19 08:06:08,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa55590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:08, skipping insertion in model container [2023-11-19 08:06:08,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:07" (3/3) ... [2023-11-19 08:06:08,033 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal.c [2023-11-19 08:06:08,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:06:08,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:06:08,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:06:08,160 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;@5765642, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:06:08,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:06:08,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 55 states have (on average 1.6181818181818182) internal successors, (89), 56 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) [2023-11-19 08:06:08,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 08:06:08,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:08,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:08,176 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:08,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:08,183 INFO L85 PathProgramCache]: Analyzing trace with hash -478331423, now seen corresponding path program 1 times [2023-11-19 08:06:08,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:08,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579121069] [2023-11-19 08:06:08,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:08,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:08,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:08,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579121069] [2023-11-19 08:06:08,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579121069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:08,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:08,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:06:08,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621064579] [2023-11-19 08:06:08,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:08,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:06:08,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:08,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:06:08,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:08,865 INFO L87 Difference]: Start difference. First operand has 57 states, 55 states have (on average 1.6181818181818182) internal successors, (89), 56 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) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:08,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:08,914 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2023-11-19 08:06:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:06:08,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 08:06:08,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:08,927 INFO L225 Difference]: With dead ends: 104 [2023-11-19 08:06:08,927 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 08:06:08,931 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 [2023-11-19 08:06:08,935 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 237 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 [2023-11-19 08:06:08,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 237 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:06:08,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 08:06:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-19 08:06:08,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 54 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) [2023-11-19 08:06:08,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 85 transitions. [2023-11-19 08:06:08,993 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 85 transitions. Word has length 13 [2023-11-19 08:06:08,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:08,993 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 85 transitions. [2023-11-19 08:06:08,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 85 transitions. [2023-11-19 08:06:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:06:08,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:08,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:08,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:06:08,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:08,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:08,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1941647229, now seen corresponding path program 1 times [2023-11-19 08:06:08,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:08,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187493857] [2023-11-19 08:06:08,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:08,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:09,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:09,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187493857] [2023-11-19 08:06:09,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187493857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:09,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:09,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:06:09,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913154112] [2023-11-19 08:06:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:09,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:06:09,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:06:09,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:09,123 INFO L87 Difference]: Start difference. First operand 55 states and 85 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:09,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:09,158 INFO L93 Difference]: Finished difference Result 105 states and 162 transitions. [2023-11-19 08:06:09,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:06:09,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-19 08:06:09,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:09,161 INFO L225 Difference]: With dead ends: 105 [2023-11-19 08:06:09,161 INFO L226 Difference]: Without dead ends: 58 [2023-11-19 08:06:09,162 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 [2023-11-19 08:06:09,163 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 234 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 [2023-11-19 08:06:09,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 234 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:06:09,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-19 08:06:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2023-11-19 08:06:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.5535714285714286) internal successors, (87), 56 states have internal predecessors, (87), 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) [2023-11-19 08:06:09,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 87 transitions. [2023-11-19 08:06:09,177 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 87 transitions. Word has length 14 [2023-11-19 08:06:09,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:09,177 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 87 transitions. [2023-11-19 08:06:09,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 87 transitions. [2023-11-19 08:06:09,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 08:06:09,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:09,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:09,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:06:09,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:09,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:09,180 INFO L85 PathProgramCache]: Analyzing trace with hash -271954373, now seen corresponding path program 1 times [2023-11-19 08:06:09,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:09,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51054516] [2023-11-19 08:06:09,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:09,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:09,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:09,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51054516] [2023-11-19 08:06:09,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51054516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:09,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:09,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:06:09,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703327623] [2023-11-19 08:06:09,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:09,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:06:09,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:09,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:06:09,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:06:09,588 INFO L87 Difference]: Start difference. First operand 57 states and 87 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-19 08:06:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:09,743 INFO L93 Difference]: Finished difference Result 148 states and 227 transitions. [2023-11-19 08:06:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:06:09,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2023-11-19 08:06:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:09,750 INFO L225 Difference]: With dead ends: 148 [2023-11-19 08:06:09,751 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 08:06:09,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:06:09,760 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 266 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:09,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 222 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:06:09,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 08:06:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 59. [2023-11-19 08:06:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.5344827586206897) internal successors, (89), 58 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) [2023-11-19 08:06:09,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions. [2023-11-19 08:06:09,781 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 15 [2023-11-19 08:06:09,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:09,783 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 89 transitions. [2023-11-19 08:06:09,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-19 08:06:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2023-11-19 08:06:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 08:06:09,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:09,787 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:09,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:06:09,787 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:09,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash 752438863, now seen corresponding path program 1 times [2023-11-19 08:06:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:09,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900524795] [2023-11-19 08:06:09,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:09,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:10,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:10,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:10,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900524795] [2023-11-19 08:06:10,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900524795] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:06:10,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866405834] [2023-11-19 08:06:10,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:10,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:10,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:10,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:10,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:06:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:10,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 77 conjunts are in the unsatisfiable core [2023-11-19 08:06:10,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:11,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:11,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866405834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:11,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:06:11,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2023-11-19 08:06:11,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871058331] [2023-11-19 08:06:11,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:11,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:06:11,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:11,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:06:11,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-19 08:06:11,863 INFO L87 Difference]: Start difference. First operand 59 states and 89 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 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) [2023-11-19 08:06:12,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:12,655 INFO L93 Difference]: Finished difference Result 146 states and 222 transitions. [2023-11-19 08:06:12,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:06:12,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2023-11-19 08:06:12,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:12,657 INFO L225 Difference]: With dead ends: 146 [2023-11-19 08:06:12,657 INFO L226 Difference]: Without dead ends: 97 [2023-11-19 08:06:12,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2023-11-19 08:06:12,659 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 304 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:12,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 251 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:06:12,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-19 08:06:12,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 59. [2023-11-19 08:06:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.5172413793103448) internal successors, (88), 58 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:12,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 88 transitions. [2023-11-19 08:06:12,671 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 88 transitions. Word has length 46 [2023-11-19 08:06:12,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:12,671 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 88 transitions. [2023-11-19 08:06:12,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 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) [2023-11-19 08:06:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2023-11-19 08:06:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 08:06:12,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:12,679 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:12,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:12,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:12,902 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:12,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:12,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2035601879, now seen corresponding path program 1 times [2023-11-19 08:06:12,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:12,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662331223] [2023-11-19 08:06:12,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:12,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:13,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:13,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662331223] [2023-11-19 08:06:13,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662331223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:13,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:13,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:06:13,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504412919] [2023-11-19 08:06:13,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:13,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:06:13,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:13,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:06:13,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:06:13,497 INFO L87 Difference]: Start difference. First operand 59 states and 88 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2023-11-19 08:06:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:13,706 INFO L93 Difference]: Finished difference Result 221 states and 331 transitions. [2023-11-19 08:06:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 08:06:13,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2023-11-19 08:06:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:13,711 INFO L225 Difference]: With dead ends: 221 [2023-11-19 08:06:13,711 INFO L226 Difference]: Without dead ends: 172 [2023-11-19 08:06:13,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:06:13,713 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 269 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:13,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 646 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:06:13,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-19 08:06:13,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 74. [2023-11-19 08:06:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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) [2023-11-19 08:06:13,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 111 transitions. [2023-11-19 08:06:13,747 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 111 transitions. Word has length 47 [2023-11-19 08:06:13,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:13,748 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 111 transitions. [2023-11-19 08:06:13,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2023-11-19 08:06:13,749 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2023-11-19 08:06:13,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 08:06:13,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:13,755 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:13,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:06:13,755 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:13,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1006557159, now seen corresponding path program 1 times [2023-11-19 08:06:13,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:13,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612299414] [2023-11-19 08:06:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:13,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:14,573 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:14,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:14,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612299414] [2023-11-19 08:06:14,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612299414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:14,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:14,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:06:14,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056638092] [2023-11-19 08:06:14,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:14,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:06:14,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:14,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:06:14,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:06:14,578 INFO L87 Difference]: Start difference. First operand 74 states and 111 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) [2023-11-19 08:06:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:14,846 INFO L93 Difference]: Finished difference Result 222 states and 332 transitions. [2023-11-19 08:06:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:06:14,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2023-11-19 08:06:14,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:14,853 INFO L225 Difference]: With dead ends: 222 [2023-11-19 08:06:14,853 INFO L226 Difference]: Without dead ends: 156 [2023-11-19 08:06:14,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-19 08:06:14,855 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 219 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:14,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 254 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:06:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-19 08:06:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 123. [2023-11-19 08:06:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.4918032786885247) internal successors, (182), 122 states have internal predecessors, (182), 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) [2023-11-19 08:06:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 182 transitions. [2023-11-19 08:06:14,877 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 182 transitions. Word has length 48 [2023-11-19 08:06:14,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:14,879 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 182 transitions. [2023-11-19 08:06:14,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) [2023-11-19 08:06:14,879 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 182 transitions. [2023-11-19 08:06:14,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 08:06:14,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:14,881 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:14,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:06:14,882 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:14,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:14,882 INFO L85 PathProgramCache]: Analyzing trace with hash -609477117, now seen corresponding path program 1 times [2023-11-19 08:06:14,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:14,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594531257] [2023-11-19 08:06:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:14,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:15,504 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:15,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:15,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594531257] [2023-11-19 08:06:15,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594531257] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:06:15,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687634425] [2023-11-19 08:06:15,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:15,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:15,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:15,509 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:15,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:06:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:15,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-19 08:06:15,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:16,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:16,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687634425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:16,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:06:16,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-19 08:06:16,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505108387] [2023-11-19 08:06:16,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:16,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:06:16,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:16,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:06:16,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:06:16,017 INFO L87 Difference]: Start difference. First operand 123 states and 182 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-11-19 08:06:16,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:16,408 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2023-11-19 08:06:16,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:06:16,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2023-11-19 08:06:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:16,410 INFO L225 Difference]: With dead ends: 271 [2023-11-19 08:06:16,410 INFO L226 Difference]: Without dead ends: 175 [2023-11-19 08:06:16,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-19 08:06:16,412 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 297 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:16,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 206 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:06:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-19 08:06:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 126. [2023-11-19 08:06:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.472) internal successors, (184), 125 states have internal predecessors, (184), 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) [2023-11-19 08:06:16,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 184 transitions. [2023-11-19 08:06:16,424 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 184 transitions. Word has length 48 [2023-11-19 08:06:16,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:16,424 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 184 transitions. [2023-11-19 08:06:16,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-11-19 08:06:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 184 transitions. [2023-11-19 08:06:16,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 08:06:16,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:16,425 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:16,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:16,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:16,648 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:16,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:16,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1479540977, now seen corresponding path program 1 times [2023-11-19 08:06:16,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:16,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541480677] [2023-11-19 08:06:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:16,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:18,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:18,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541480677] [2023-11-19 08:06:18,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541480677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:18,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:18,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 08:06:18,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835795105] [2023-11-19 08:06:18,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:18,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:06:18,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:18,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:06:18,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:06:18,111 INFO L87 Difference]: Start difference. First operand 126 states and 184 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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) [2023-11-19 08:06:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:18,668 INFO L93 Difference]: Finished difference Result 316 states and 463 transitions. [2023-11-19 08:06:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 08:06:18,668 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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 49 [2023-11-19 08:06:18,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:18,670 INFO L225 Difference]: With dead ends: 316 [2023-11-19 08:06:18,670 INFO L226 Difference]: Without dead ends: 238 [2023-11-19 08:06:18,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2023-11-19 08:06:18,672 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 433 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:18,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 335 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:06:18,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-19 08:06:18,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 142. [2023-11-19 08:06:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.4609929078014185) internal successors, (206), 141 states have internal predecessors, (206), 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) [2023-11-19 08:06:18,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 206 transitions. [2023-11-19 08:06:18,684 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 206 transitions. Word has length 49 [2023-11-19 08:06:18,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:18,684 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 206 transitions. [2023-11-19 08:06:18,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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) [2023-11-19 08:06:18,685 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 206 transitions. [2023-11-19 08:06:18,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 08:06:18,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:18,686 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:18,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:06:18,686 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:18,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:18,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1698395695, now seen corresponding path program 1 times [2023-11-19 08:06:18,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:18,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240631332] [2023-11-19 08:06:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:18,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:19,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:19,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240631332] [2023-11-19 08:06:19,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240631332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:19,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:19,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:06:19,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797620481] [2023-11-19 08:06:19,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:19,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:06:19,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:19,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:06:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:06:19,404 INFO L87 Difference]: Start difference. First operand 142 states and 206 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2023-11-19 08:06:19,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:19,628 INFO L93 Difference]: Finished difference Result 269 states and 396 transitions. [2023-11-19 08:06:19,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 08:06:19,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2023-11-19 08:06:19,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:19,631 INFO L225 Difference]: With dead ends: 269 [2023-11-19 08:06:19,631 INFO L226 Difference]: Without dead ends: 203 [2023-11-19 08:06:19,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:06:19,633 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 220 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:19,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 588 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:06:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-19 08:06:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 116. [2023-11-19 08:06:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.4521739130434783) internal successors, (167), 115 states have internal predecessors, (167), 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) [2023-11-19 08:06:19,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2023-11-19 08:06:19,644 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 167 transitions. Word has length 49 [2023-11-19 08:06:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:19,645 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 167 transitions. [2023-11-19 08:06:19,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2023-11-19 08:06:19,645 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 167 transitions. [2023-11-19 08:06:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 08:06:19,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:19,646 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:19,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:06:19,647 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:19,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:19,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1074816911, now seen corresponding path program 1 times [2023-11-19 08:06:19,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:19,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737353320] [2023-11-19 08:06:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:19,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:20,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737353320] [2023-11-19 08:06:20,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737353320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:20,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:20,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:06:20,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563833243] [2023-11-19 08:06:20,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:20,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:06:20,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:06:20,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:06:20,428 INFO L87 Difference]: Start difference. First operand 116 states and 167 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2023-11-19 08:06:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:20,759 INFO L93 Difference]: Finished difference Result 222 states and 324 transitions. [2023-11-19 08:06:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:06:20,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2023-11-19 08:06:20,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:20,762 INFO L225 Difference]: With dead ends: 222 [2023-11-19 08:06:20,762 INFO L226 Difference]: Without dead ends: 170 [2023-11-19 08:06:20,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:06:20,763 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 296 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:20,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 348 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:06:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-19 08:06:20,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 123. [2023-11-19 08:06:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.4508196721311475) internal successors, (177), 122 states have internal predecessors, (177), 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) [2023-11-19 08:06:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 177 transitions. [2023-11-19 08:06:20,775 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 177 transitions. Word has length 50 [2023-11-19 08:06:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:20,776 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 177 transitions. [2023-11-19 08:06:20,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2023-11-19 08:06:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 177 transitions. [2023-11-19 08:06:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 08:06:20,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:20,778 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:20,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:06:20,778 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:20,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash 63699661, now seen corresponding path program 1 times [2023-11-19 08:06:20,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:20,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518019164] [2023-11-19 08:06:20,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:20,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:22,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518019164] [2023-11-19 08:06:22,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518019164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:22,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:22,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 08:06:22,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811073725] [2023-11-19 08:06:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:22,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:06:22,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:22,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:06:22,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:06:22,132 INFO L87 Difference]: Start difference. First operand 123 states and 177 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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) [2023-11-19 08:06:22,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:22,807 INFO L93 Difference]: Finished difference Result 287 states and 413 transitions. [2023-11-19 08:06:22,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 08:06:22,808 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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 50 [2023-11-19 08:06:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:22,809 INFO L225 Difference]: With dead ends: 287 [2023-11-19 08:06:22,809 INFO L226 Difference]: Without dead ends: 174 [2023-11-19 08:06:22,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2023-11-19 08:06:22,811 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 507 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:22,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 613 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:06:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-19 08:06:22,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2023-11-19 08:06:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.4435483870967742) internal successors, (179), 124 states have internal predecessors, (179), 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) [2023-11-19 08:06:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 179 transitions. [2023-11-19 08:06:22,824 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 179 transitions. Word has length 50 [2023-11-19 08:06:22,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:22,824 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 179 transitions. [2023-11-19 08:06:22,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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) [2023-11-19 08:06:22,825 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 179 transitions. [2023-11-19 08:06:22,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 08:06:22,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:22,826 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:22,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 08:06:22,826 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:22,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:22,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1291174321, now seen corresponding path program 1 times [2023-11-19 08:06:22,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:22,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187794800] [2023-11-19 08:06:22,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:22,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:23,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:23,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187794800] [2023-11-19 08:06:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187794800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:23,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:23,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:06:23,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549828973] [2023-11-19 08:06:23,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:23,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:06:23,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:23,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:06:23,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:06:23,604 INFO L87 Difference]: Start difference. First operand 125 states and 179 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2023-11-19 08:06:24,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:24,357 INFO L93 Difference]: Finished difference Result 373 states and 538 transitions. [2023-11-19 08:06:24,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 08:06:24,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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 50 [2023-11-19 08:06:24,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:24,359 INFO L225 Difference]: With dead ends: 373 [2023-11-19 08:06:24,359 INFO L226 Difference]: Without dead ends: 211 [2023-11-19 08:06:24,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2023-11-19 08:06:24,361 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 688 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:24,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 673 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:06:24,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-19 08:06:24,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 127. [2023-11-19 08:06:24,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.4206349206349207) internal successors, (179), 126 states have internal predecessors, (179), 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) [2023-11-19 08:06:24,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 179 transitions. [2023-11-19 08:06:24,384 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 179 transitions. Word has length 50 [2023-11-19 08:06:24,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:24,384 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 179 transitions. [2023-11-19 08:06:24,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2023-11-19 08:06:24,385 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 179 transitions. [2023-11-19 08:06:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 08:06:24,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:24,385 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:24,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 08:06:24,386 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:24,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:24,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2091019859, now seen corresponding path program 1 times [2023-11-19 08:06:24,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:24,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958356194] [2023-11-19 08:06:24,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:24,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:25,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:25,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958356194] [2023-11-19 08:06:25,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958356194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:25,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:25,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:06:25,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757063546] [2023-11-19 08:06:25,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:25,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:06:25,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:25,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:06:25,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:06:25,187 INFO L87 Difference]: Start difference. First operand 127 states and 179 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2023-11-19 08:06:25,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:25,448 INFO L93 Difference]: Finished difference Result 192 states and 273 transitions. [2023-11-19 08:06:25,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:06:25,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2023-11-19 08:06:25,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:25,450 INFO L225 Difference]: With dead ends: 192 [2023-11-19 08:06:25,450 INFO L226 Difference]: Without dead ends: 138 [2023-11-19 08:06:25,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:06:25,451 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 196 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:25,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 250 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:06:25,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-19 08:06:25,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 130. [2023-11-19 08:06:25,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4186046511627908) internal successors, (183), 129 states have internal predecessors, (183), 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) [2023-11-19 08:06:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 183 transitions. [2023-11-19 08:06:25,463 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 183 transitions. Word has length 51 [2023-11-19 08:06:25,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:25,464 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 183 transitions. [2023-11-19 08:06:25,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2023-11-19 08:06:25,464 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 183 transitions. [2023-11-19 08:06:25,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 08:06:25,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:25,465 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:25,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 08:06:25,465 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:25,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:25,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1502882859, now seen corresponding path program 1 times [2023-11-19 08:06:25,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:25,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455645255] [2023-11-19 08:06:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:25,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:25,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:06:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:06:25,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:06:25,864 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:06:25,865 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:06:25,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 08:06:25,871 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:25,877 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:06:25,933 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 08:06:25,934 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 08:06:25,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-19 08:06:25,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-19 08:06:25,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-19 08:06:25,941 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-19 08:06:25,948 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-19 08:06:25,951 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-19 08:06:25,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-19 08:06:25,958 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-19 08:06:25,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-19 08:06:25,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-19 08:06:25,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-19 08:06:25,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-11-19 08:06:25,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated [2023-11-19 08:06:25,972 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-19 08:06:25,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-19 08:06:25,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-19 08:06:25,977 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-19 08:06:25,977 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-19 08:06:25,978 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 08:06:25,978 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 08:06:26,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:06:26 BoogieIcfgContainer [2023-11-19 08:06:26,006 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:06:26,007 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:06:26,007 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:06:26,007 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:06:26,008 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:07" (3/4) ... [2023-11-19 08:06:26,010 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:06:26,011 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:06:26,012 INFO L158 Benchmark]: Toolchain (without parser) took 19497.55ms. Allocated memory was 159.4MB in the beginning and 308.3MB in the end (delta: 148.9MB). Free memory was 110.5MB in the beginning and 129.8MB in the end (delta: -19.2MB). Peak memory consumption was 131.3MB. Max. memory is 16.1GB. [2023-11-19 08:06:26,012 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 159.4MB. Free memory was 127.4MB in the beginning and 127.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:26,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.56ms. Allocated memory is still 159.4MB. Free memory was 110.5MB in the beginning and 96.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:06:26,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.36ms. Allocated memory is still 159.4MB. Free memory was 96.6MB in the beginning and 90.2MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 08:06:26,015 INFO L158 Benchmark]: Boogie Preprocessor took 99.25ms. Allocated memory is still 159.4MB. Free memory was 90.2MB in the beginning and 86.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:06:26,015 INFO L158 Benchmark]: RCFGBuilder took 879.06ms. Allocated memory is still 159.4MB. Free memory was 86.8MB in the beginning and 54.6MB in the end (delta: 32.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 08:06:26,016 INFO L158 Benchmark]: TraceAbstraction took 18031.80ms. Allocated memory was 159.4MB in the beginning and 308.3MB in the end (delta: 148.9MB). Free memory was 54.5MB in the beginning and 130.8MB in the end (delta: -76.3MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2023-11-19 08:06:26,016 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 308.3MB. Free memory was 130.8MB in the beginning and 129.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:26,022 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 159.4MB. Free memory was 127.4MB in the beginning and 127.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.56ms. Allocated memory is still 159.4MB. Free memory was 110.5MB in the beginning and 96.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.36ms. Allocated memory is still 159.4MB. Free memory was 96.6MB in the beginning and 90.2MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.25ms. Allocated memory is still 159.4MB. Free memory was 90.2MB in the beginning and 86.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 879.06ms. Allocated memory is still 159.4MB. Free memory was 86.8MB in the beginning and 54.6MB in the end (delta: 32.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 18031.80ms. Allocated memory was 159.4MB in the beginning and 308.3MB in the end (delta: 148.9MB). Free memory was 54.5MB in the beginning and 130.8MB in the end (delta: -76.3MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 308.3MB. Free memory was 130.8MB in the beginning and 129.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet20 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~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 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 shiftRight at line 78, overapproximation of bitwiseOr at line 134, overapproximation of bitwiseAnd at line 147. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L32] const SORT_4 var_5 = 0; [L33] const SORT_1 var_14 = 1; [L34] const SORT_4 var_19 = 1; [L35] const SORT_4 var_22 = 15; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L40] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, var_14=1, var_19=1, var_22=15, var_5=0] [L40] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L41] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, var_14=1, var_19=1, var_22=15, var_5=0] [L41] SORT_4 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 init_7_arg_1 = var_5; [L44] state_6 = init_7_arg_1 [L45] SORT_4 init_9_arg_1 = var_5; [L46] state_8 = init_9_arg_1 VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_14=1, var_19=1, var_22=15, var_5=0] [L49] input_2 = __VERIFIER_nondet_uchar() [L50] input_3 = __VERIFIER_nondet_uchar() [L53] SORT_4 var_10_arg_0 = state_6; [L54] SORT_4 var_10_arg_1 = state_8; [L55] SORT_1 var_10 = var_10_arg_0 < var_10_arg_1; [L56] SORT_1 var_11_arg_0 = var_10; [L57] SORT_1 var_11 = ~var_11_arg_0; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_5=0] [L62] EXPR var_16_arg_0 & var_16_arg_1 VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_5=0] [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] EXPR var_16 & mask_SORT_1 VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_5=0] [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_1 var_31_arg_0 = input_3; [L68] SORT_1 var_31 = ~var_31_arg_0; [L69] SORT_4 var_32_arg_0 = state_6; [L70] SORT_4 var_32_arg_1 = state_8; [L71] SORT_1 var_32 = var_32_arg_0 > var_32_arg_1; [L72] SORT_1 var_33_arg_0 = var_31; [L73] SORT_1 var_33_arg_1 = var_32; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L74] EXPR var_33_arg_0 & var_33_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L74] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L75] EXPR var_33 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L75] var_33 = var_33 & mask_SORT_1 [L76] SORT_4 var_28_arg_0 = var_22; [L77] SORT_4 var_28_arg_1 = var_19; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_28_arg_0=15, var_28_arg_1=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L78] EXPR var_28_arg_0 >> var_28_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_28_arg_0=15, var_28_arg_1=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L78] SORT_4 var_28 = var_28_arg_0 >> var_28_arg_1; [L79] SORT_4 var_29_arg_0 = state_6; [L80] SORT_4 var_29_arg_1 = var_19; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29_arg_0=0, var_29_arg_1=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L81] EXPR var_29_arg_0 >> var_29_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29_arg_0=0, var_29_arg_1=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L81] SORT_4 var_29 = var_29_arg_0 >> var_29_arg_1; [L82] SORT_4 var_30_arg_0 = var_28; [L83] SORT_4 var_30_arg_1 = var_29; [L84] SORT_4 var_30 = var_30_arg_0 + var_30_arg_1; [L85] SORT_4 var_26_arg_0 = state_6; [L86] SORT_4 var_26_arg_1 = state_8; [L87] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L88] SORT_4 var_21_arg_0 = state_8; [L89] SORT_4 var_21_arg_1 = state_6; [L90] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L91] SORT_4 var_23_arg_0 = state_6; [L92] SORT_4 var_23_arg_1 = var_22; [L93] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L94] SORT_1 var_24_arg_0 = var_21; [L95] SORT_1 var_24_arg_1 = var_23; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24_arg_0=1, var_24_arg_1=1, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L96] EXPR var_24_arg_0 | var_24_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24_arg_0=1, var_24_arg_1=1, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L96] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L97] EXPR var_24 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L97] var_24 = var_24 & mask_SORT_1 [L98] SORT_4 var_20_arg_0 = state_6; [L99] SORT_4 var_20_arg_1 = var_19; [L100] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L101] SORT_1 var_25_arg_0 = var_24; [L102] SORT_4 var_25_arg_1 = var_20; [L103] SORT_4 var_25_arg_2 = state_8; [L104] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L105] SORT_1 var_27_arg_0 = var_26; [L106] SORT_4 var_27_arg_1 = state_6; [L107] SORT_4 var_27_arg_2 = var_25; [L108] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L109] SORT_1 var_34_arg_0 = var_33; [L110] SORT_4 var_34_arg_1 = var_30; [L111] SORT_4 var_34_arg_2 = var_27; [L112] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=1, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_5=0] [L113] EXPR var_34 & mask_SORT_4 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=1, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_5=0] [L113] var_34 = var_34 & mask_SORT_4 [L114] SORT_4 next_35_arg_1 = var_34; [L115] SORT_1 var_42_arg_0 = input_3; [L116] SORT_1 var_42 = ~var_42_arg_0; [L117] SORT_4 var_43_arg_0 = state_6; [L118] SORT_4 var_43_arg_1 = state_8; [L119] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L120] SORT_1 var_44_arg_0 = var_42; [L121] SORT_1 var_44_arg_1 = var_43; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L122] EXPR var_44_arg_0 & var_44_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L122] SORT_1 var_44 = var_44_arg_0 & var_44_arg_1; [L123] EXPR var_44 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L123] var_44 = var_44 & mask_SORT_1 [L124] SORT_4 var_37_arg_0 = state_6; [L125] SORT_4 var_37_arg_1 = state_8; [L126] SORT_1 var_37 = var_37_arg_0 > var_37_arg_1; [L127] SORT_1 var_38_arg_0 = var_37; [L128] SORT_1 var_38 = ~var_38_arg_0; [L129] SORT_4 var_39_arg_0 = state_6; [L130] SORT_4 var_39_arg_1 = var_22; [L131] SORT_1 var_39 = var_39_arg_0 != var_39_arg_1; [L132] SORT_1 var_40_arg_0 = var_38; [L133] SORT_1 var_40_arg_1 = var_39; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40_arg_0=255, var_40_arg_1=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L134] EXPR var_40_arg_0 | var_40_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40_arg_0=255, var_40_arg_1=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L134] SORT_1 var_40 = var_40_arg_0 | var_40_arg_1; [L135] EXPR var_40 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=255, var_40_arg_0=255, var_40_arg_1=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L135] var_40 = var_40 & mask_SORT_1 [L136] SORT_4 var_36_arg_0 = state_8; [L137] SORT_4 var_36_arg_1 = var_19; [L138] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L139] SORT_1 var_41_arg_0 = var_40; [L140] SORT_4 var_41_arg_1 = var_36; [L141] SORT_4 var_41_arg_2 = state_6; [L142] SORT_4 var_41 = var_41_arg_0 ? var_41_arg_1 : var_41_arg_2; [L143] SORT_1 var_45_arg_0 = var_44; [L144] SORT_4 var_45_arg_1 = state_8; [L145] SORT_4 var_45_arg_2 = var_41; [L146] SORT_4 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L147] EXPR var_45 & mask_SORT_4 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L147] var_45 = var_45 & mask_SORT_4 [L148] SORT_4 next_46_arg_1 = var_45; [L150] state_6 = next_35_arg_1 [L151] state_8 = next_46_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, next_46_arg_1=1, state_6=0, state_8=1, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L49] input_2 = __VERIFIER_nondet_uchar() [L50] input_3 = __VERIFIER_nondet_uchar() [L53] SORT_4 var_10_arg_0 = state_6; [L54] SORT_4 var_10_arg_1 = state_8; [L55] SORT_1 var_10 = var_10_arg_0 < var_10_arg_1; [L56] SORT_1 var_11_arg_0 = var_10; [L57] SORT_1 var_11 = ~var_11_arg_0; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, next_46_arg_1=1, state_6=0, state_8=1, var_10=1, var_10_arg_0=0, var_10_arg_1=1, var_11=254, var_11_arg_0=1, var_14=1, var_15=1, var_15_arg_0=254, var_16=0, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L62] EXPR var_16_arg_0 & var_16_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, next_46_arg_1=1, state_6=0, state_8=1, var_10=1, var_10_arg_0=0, var_10_arg_1=1, var_11=254, var_11_arg_0=1, var_14=1, var_15=1, var_15_arg_0=254, var_16=0, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] EXPR var_16 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, next_46_arg_1=1, state_6=0, state_8=1, var_10=1, var_10_arg_0=0, var_10_arg_1=1, var_11=254, var_11_arg_0=1, var_14=1, var_15=1, var_15_arg_0=254, var_16=1, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_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, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.7s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3697 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3697 mSDsluCounter, 4857 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3794 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1975 IncrementalHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 1063 mSDtfsCounter, 1975 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=8, InterpolantAutomatonStates: 132, 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, 13 MinimizatonAttempts, 630 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 675 NumberOfCodeBlocks, 675 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 609 ConstructedInterpolants, 0 QuantifiedInterpolants, 4044 SizeOfPredicates, 43 NumberOfNonLiveVariables, 677 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 64/72 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 [2023-11-19 08:06:26,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu --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 16f8726a4add15d0bf2494bd44888be53eb7bc01110882b6fc03ef148c6d9055 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:28,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:28,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-19 08:06:28,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:28,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:28,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:28,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:28,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:28,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:28,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:28,860 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:28,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:28,861 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:28,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:28,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:06:28,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:28,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:06:28,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:28,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:06:28,873 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:06:28,873 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:06:28,874 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:06:28,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:28,875 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:28,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:28,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:28,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:28,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:28,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:28,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:28,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:06:28,880 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:06:28,880 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:06:28,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:28,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:06:28,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:28,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:28,882 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:06:28,883 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:28,884 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_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16f8726a4add15d0bf2494bd44888be53eb7bc01110882b6fc03ef148c6d9055 [2023-11-19 08:06:29,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:29,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:29,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:29,339 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:29,340 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:29,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2023-11-19 08:06:32,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:32,882 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:32,885 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2023-11-19 08:06:32,901 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/data/976bb2a3d/048e7de1240b44cebee63999dac81d85/FLAG6020716e6 [2023-11-19 08:06:32,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/data/976bb2a3d/048e7de1240b44cebee63999dac81d85 [2023-11-19 08:06:32,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:32,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:32,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:32,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:32,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:32,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:32" (1/1) ... [2023-11-19 08:06:32,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1799d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:32, skipping insertion in model container [2023-11-19 08:06:32,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:32" (1/1) ... [2023-11-19 08:06:32,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:33,224 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_49e37c3f-ced5-4db6-8091-e472c241e737/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1248,1261] [2023-11-19 08:06:33,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:33,370 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:33,390 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_49e37c3f-ced5-4db6-8091-e472c241e737/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1248,1261] [2023-11-19 08:06:33,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:33,487 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:33,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33 WrapperNode [2023-11-19 08:06:33,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:33,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:33,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:33,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:33,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,583 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 144 [2023-11-19 08:06:33,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:33,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:33,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:33,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:33,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:33,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:33,681 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:33,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:33,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (1/1) ... [2023-11-19 08:06:33,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:33,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:33,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:33,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:06:33,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:33,884 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:33,886 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:34,152 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:34,160 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:34,160 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:06:34,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:34 BoogieIcfgContainer [2023-11-19 08:06:34,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:34,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:06:34,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:06:34,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:06:34,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:32" (1/3) ... [2023-11-19 08:06:34,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab86723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:34, skipping insertion in model container [2023-11-19 08:06:34,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:33" (2/3) ... [2023-11-19 08:06:34,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab86723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:34, skipping insertion in model container [2023-11-19 08:06:34,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:34" (3/3) ... [2023-11-19 08:06:34,175 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal.c [2023-11-19 08:06:34,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:06:34,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:06:34,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:06:34,256 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;@ce6984b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:06:34,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:06:34,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 08:06:34,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:34,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:06:34,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:34,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:34,275 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-19 08:06:34,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:34,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208185294] [2023-11-19 08:06:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:34,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:34,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:34,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:34,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 08:06:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:34,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 08:06:34,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:34,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:34,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:34,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208185294] [2023-11-19 08:06:34,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208185294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:34,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:34,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:06:34,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31143776] [2023-11-19 08:06:34,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:34,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:06:34,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:06:34,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:34,957 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:35,030 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-19 08:06:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:06:35,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 08:06:35,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:35,067 INFO L225 Difference]: With dead ends: 19 [2023-11-19 08:06:35,068 INFO L226 Difference]: Without dead ends: 10 [2023-11-19 08:06:35,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:06:35,076 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:35,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:06:35,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-19 08:06:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-19 08:06:35,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-19 08:06:35,119 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-19 08:06:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:35,120 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-19 08:06:35,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:35,120 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-19 08:06:35,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:06:35,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:35,121 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:35,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:35,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:35,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:35,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:35,332 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-19 08:06:35,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:35,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022293603] [2023-11-19 08:06:35,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:35,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:35,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:35,340 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:35,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e37c3f-ced5-4db6-8091-e472c241e737/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 08:06:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:35,520 WARN L260 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-19 08:06:35,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:37,023 INFO L327 TraceCheckSpWp]: Computing backward predicates...