./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/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_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/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 32bit --witnessprinter.graph.data.programhash a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:11,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:11,695 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:39:11,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:11,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:11,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:11,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:11,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:11,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:11,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:11,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:11,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:11,746 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:11,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:11,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:11,748 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:11,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:11,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:11,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:11,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:11,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:11,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:11,752 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:11,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:11,753 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:11,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:11,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:11,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:11,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:11,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:11,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:11,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:11,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:11,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:11,758 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:11,758 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:11,759 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:11,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:11,760 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:11,760 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_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 [2023-11-19 07:39:12,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:12,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:12,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:12,135 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:12,136 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:12,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2023-11-19 07:39:15,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:15,577 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:15,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2023-11-19 07:39:15,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/data/33c5a7ad6/d25e4dc7fa1545cfaa8e8c74ef84ea4e/FLAG93e52a8f7 [2023-11-19 07:39:15,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/data/33c5a7ad6/d25e4dc7fa1545cfaa8e8c74ef84ea4e [2023-11-19 07:39:15,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:15,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:15,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:15,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:15,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:15,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:15" (1/1) ... [2023-11-19 07:39:15,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66fd9b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:15, skipping insertion in model container [2023-11-19 07:39:15,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:15" (1/1) ... [2023-11-19 07:39:15,697 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:15,957 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_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2023-11-19 07:39:15,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:15,981 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:16,060 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_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2023-11-19 07:39:16,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:16,088 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:16,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16 WrapperNode [2023-11-19 07:39:16,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:16,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:16,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:16,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:16,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,154 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 664 [2023-11-19 07:39:16,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:16,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:16,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:16,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:16,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:16,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:16,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:16,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:16,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (1/1) ... [2023-11-19 07:39:16,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:16,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:16,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:16,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:16,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:16,465 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:16,467 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:16,487 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:39:17,248 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume !false; [2023-11-19 07:39:17,252 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##102: assume false; [2023-11-19 07:39:17,252 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:17,261 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:17,261 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:39:17,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:17 BoogieIcfgContainer [2023-11-19 07:39:17,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:17,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:17,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:17,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:17,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:15" (1/3) ... [2023-11-19 07:39:17,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323aa47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:17, skipping insertion in model container [2023-11-19 07:39:17,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:16" (2/3) ... [2023-11-19 07:39:17,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323aa47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:17, skipping insertion in model container [2023-11-19 07:39:17,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:17" (3/3) ... [2023-11-19 07:39:17,278 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a.BV.c.cil.c [2023-11-19 07:39:17,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:17,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:39:17,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:17,359 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;@35ece822, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:17,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:39:17,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 158 states have (on average 1.7784810126582278) internal successors, (281), 159 states have internal predecessors, (281), 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 07:39:17,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:39:17,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:17,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:17,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:17,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:17,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2093138947, now seen corresponding path program 1 times [2023-11-19 07:39:17,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:17,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495754769] [2023-11-19 07:39:17,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:17,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:17,966 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 07:39:17,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:17,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495754769] [2023-11-19 07:39:17,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495754769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:17,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:17,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:17,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009044599] [2023-11-19 07:39:17,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:17,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:17,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:18,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:18,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:18,022 INFO L87 Difference]: Start difference. First operand has 160 states, 158 states have (on average 1.7784810126582278) internal successors, (281), 159 states have internal predecessors, (281), 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 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 07:39:18,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:18,319 INFO L93 Difference]: Finished difference Result 354 states and 625 transitions. [2023-11-19 07:39:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2023-11-19 07:39:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:18,335 INFO L225 Difference]: With dead ends: 354 [2023-11-19 07:39:18,335 INFO L226 Difference]: Without dead ends: 183 [2023-11-19 07:39:18,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:18,342 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 196 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:18,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 219 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:39:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-19 07:39:18,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 178. [2023-11-19 07:39:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.6497175141242937) internal successors, (292), 177 states have internal predecessors, (292), 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 07:39:18,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 292 transitions. [2023-11-19 07:39:18,393 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 292 transitions. Word has length 45 [2023-11-19 07:39:18,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:18,394 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 292 transitions. [2023-11-19 07:39:18,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 07:39:18,394 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 292 transitions. [2023-11-19 07:39:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 07:39:18,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:18,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:18,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:39:18,398 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:18,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash 452783401, now seen corresponding path program 1 times [2023-11-19 07:39:18,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:18,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984533884] [2023-11-19 07:39:18,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:18,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:18,613 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 07:39:18,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:18,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984533884] [2023-11-19 07:39:18,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984533884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:18,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:18,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:18,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924086543] [2023-11-19 07:39:18,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:18,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:18,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:18,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:18,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:18,618 INFO L87 Difference]: Start difference. First operand 178 states and 292 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 07:39:18,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:18,836 INFO L93 Difference]: Finished difference Result 392 states and 645 transitions. [2023-11-19 07:39:18,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:18,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 07:39:18,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:18,846 INFO L225 Difference]: With dead ends: 392 [2023-11-19 07:39:18,847 INFO L226 Difference]: Without dead ends: 224 [2023-11-19 07:39:18,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:18,858 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 152 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:18,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 170 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:39:18,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-19 07:39:18,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 219. [2023-11-19 07:39:18,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.6697247706422018) internal successors, (364), 218 states have internal predecessors, (364), 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 07:39:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 364 transitions. [2023-11-19 07:39:18,897 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 364 transitions. Word has length 46 [2023-11-19 07:39:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:18,898 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 364 transitions. [2023-11-19 07:39:18,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 07:39:18,898 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 364 transitions. [2023-11-19 07:39:18,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 07:39:18,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:18,910 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:18,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:39:18,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:18,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:18,914 INFO L85 PathProgramCache]: Analyzing trace with hash 963338014, now seen corresponding path program 1 times [2023-11-19 07:39:18,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:18,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219958952] [2023-11-19 07:39:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:18,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:19,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:19,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219958952] [2023-11-19 07:39:19,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219958952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:19,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:19,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:19,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844630518] [2023-11-19 07:39:19,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:19,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:19,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:19,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:19,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:19,082 INFO L87 Difference]: Start difference. First operand 219 states and 364 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 07:39:19,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:19,235 INFO L93 Difference]: Finished difference Result 457 states and 761 transitions. [2023-11-19 07:39:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:19,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2023-11-19 07:39:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:19,238 INFO L225 Difference]: With dead ends: 457 [2023-11-19 07:39:19,238 INFO L226 Difference]: Without dead ends: 250 [2023-11-19 07:39:19,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:19,244 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 159 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:19,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 183 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:19,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-19 07:39:19,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2023-11-19 07:39:19,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 1.6666666666666667) internal successors, (415), 249 states have internal predecessors, (415), 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 07:39:19,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 415 transitions. [2023-11-19 07:39:19,262 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 415 transitions. Word has length 73 [2023-11-19 07:39:19,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:19,262 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 415 transitions. [2023-11-19 07:39:19,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 07:39:19,263 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 415 transitions. [2023-11-19 07:39:19,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 07:39:19,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:19,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:19,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:39:19,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:19,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:19,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1308572588, now seen corresponding path program 1 times [2023-11-19 07:39:19,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:19,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683938016] [2023-11-19 07:39:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:19,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 07:39:19,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:19,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683938016] [2023-11-19 07:39:19,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683938016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:19,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:19,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:19,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315451090] [2023-11-19 07:39:19,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:19,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:19,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:19,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:19,422 INFO L87 Difference]: Start difference. First operand 250 states and 415 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 07:39:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:19,534 INFO L93 Difference]: Finished difference Result 490 states and 812 transitions. [2023-11-19 07:39:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:19,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 85 [2023-11-19 07:39:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:19,542 INFO L225 Difference]: With dead ends: 490 [2023-11-19 07:39:19,542 INFO L226 Difference]: Without dead ends: 252 [2023-11-19 07:39:19,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:19,544 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 181 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:19,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 166 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:19,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-19 07:39:19,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 250. [2023-11-19 07:39:19,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 1.6546184738955823) internal successors, (412), 249 states have internal predecessors, (412), 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 07:39:19,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 412 transitions. [2023-11-19 07:39:19,559 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 412 transitions. Word has length 85 [2023-11-19 07:39:19,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:19,559 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 412 transitions. [2023-11-19 07:39:19,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 07:39:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 412 transitions. [2023-11-19 07:39:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 07:39:19,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:19,562 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:19,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:39:19,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:19,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:19,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1120265120, now seen corresponding path program 1 times [2023-11-19 07:39:19,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:19,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46547639] [2023-11-19 07:39:19,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:19,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:19,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:19,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46547639] [2023-11-19 07:39:19,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46547639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:19,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:19,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:19,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942428400] [2023-11-19 07:39:19,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:19,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:19,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:19,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:19,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:19,689 INFO L87 Difference]: Start difference. First operand 250 states and 412 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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 07:39:19,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:19,865 INFO L93 Difference]: Finished difference Result 534 states and 880 transitions. [2023-11-19 07:39:19,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:19,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) Word has length 85 [2023-11-19 07:39:19,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:19,870 INFO L225 Difference]: With dead ends: 534 [2023-11-19 07:39:19,870 INFO L226 Difference]: Without dead ends: 296 [2023-11-19 07:39:19,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:19,871 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 155 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:19,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 173 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:39:19,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-19 07:39:19,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 292. [2023-11-19 07:39:19,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.6529209621993126) internal successors, (481), 291 states have internal predecessors, (481), 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 07:39:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 481 transitions. [2023-11-19 07:39:19,883 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 481 transitions. Word has length 85 [2023-11-19 07:39:19,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:19,884 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 481 transitions. [2023-11-19 07:39:19,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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 07:39:19,884 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 481 transitions. [2023-11-19 07:39:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 07:39:19,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:19,886 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:19,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:39:19,886 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:19,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash 976164991, now seen corresponding path program 1 times [2023-11-19 07:39:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53457457] [2023-11-19 07:39:19,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:19,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:19,985 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 07:39:19,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:19,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53457457] [2023-11-19 07:39:19,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53457457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:19,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:19,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:19,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441049402] [2023-11-19 07:39:19,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:19,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:19,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:19,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:19,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:19,991 INFO L87 Difference]: Start difference. First operand 292 states and 481 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 07:39:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:20,106 INFO L93 Difference]: Finished difference Result 574 states and 944 transitions. [2023-11-19 07:39:20,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:20,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 86 [2023-11-19 07:39:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:20,110 INFO L225 Difference]: With dead ends: 574 [2023-11-19 07:39:20,111 INFO L226 Difference]: Without dead ends: 294 [2023-11-19 07:39:20,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:20,116 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 179 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:20,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 167 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:20,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-19 07:39:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292. [2023-11-19 07:39:20,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.6391752577319587) internal successors, (477), 291 states have internal predecessors, (477), 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 07:39:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 477 transitions. [2023-11-19 07:39:20,131 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 477 transitions. Word has length 86 [2023-11-19 07:39:20,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:20,132 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 477 transitions. [2023-11-19 07:39:20,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 07:39:20,133 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 477 transitions. [2023-11-19 07:39:20,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 07:39:20,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:20,134 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:20,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:39:20,135 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:20,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:20,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1374131046, now seen corresponding path program 1 times [2023-11-19 07:39:20,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:20,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795122668] [2023-11-19 07:39:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:20,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:20,227 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:20,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:20,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795122668] [2023-11-19 07:39:20,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795122668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:20,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:20,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:20,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257407978] [2023-11-19 07:39:20,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:20,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:20,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:20,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:20,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:20,230 INFO L87 Difference]: Start difference. First operand 292 states and 477 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:20,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:20,377 INFO L93 Difference]: Finished difference Result 576 states and 939 transitions. [2023-11-19 07:39:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:20,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-11-19 07:39:20,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:20,380 INFO L225 Difference]: With dead ends: 576 [2023-11-19 07:39:20,380 INFO L226 Difference]: Without dead ends: 294 [2023-11-19 07:39:20,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:20,382 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 152 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:20,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 172 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:20,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-19 07:39:20,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 290. [2023-11-19 07:39:20,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.6332179930795847) internal successors, (472), 289 states have internal predecessors, (472), 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 07:39:20,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 472 transitions. [2023-11-19 07:39:20,394 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 472 transitions. Word has length 86 [2023-11-19 07:39:20,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:20,395 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 472 transitions. [2023-11-19 07:39:20,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:20,395 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 472 transitions. [2023-11-19 07:39:20,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-19 07:39:20,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:20,397 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:20,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:39:20,398 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:20,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:20,398 INFO L85 PathProgramCache]: Analyzing trace with hash 711038615, now seen corresponding path program 1 times [2023-11-19 07:39:20,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:20,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206613164] [2023-11-19 07:39:20,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:20,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:20,518 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 07:39:20,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:20,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206613164] [2023-11-19 07:39:20,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206613164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:20,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:20,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719986443] [2023-11-19 07:39:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:20,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:20,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:20,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:20,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:20,523 INFO L87 Difference]: Start difference. First operand 290 states and 472 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:20,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:20,648 INFO L93 Difference]: Finished difference Result 599 states and 973 transitions. [2023-11-19 07:39:20,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:20,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-11-19 07:39:20,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:20,651 INFO L225 Difference]: With dead ends: 599 [2023-11-19 07:39:20,651 INFO L226 Difference]: Without dead ends: 321 [2023-11-19 07:39:20,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:20,652 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 165 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:20,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 168 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-19 07:39:20,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2023-11-19 07:39:20,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 1.619496855345912) internal successors, (515), 318 states have internal predecessors, (515), 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 07:39:20,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 515 transitions. [2023-11-19 07:39:20,664 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 515 transitions. Word has length 99 [2023-11-19 07:39:20,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:20,665 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 515 transitions. [2023-11-19 07:39:20,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:20,665 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 515 transitions. [2023-11-19 07:39:20,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 07:39:20,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:20,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-19 07:39:20,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:39:20,668 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:20,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:20,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2076362782, now seen corresponding path program 1 times [2023-11-19 07:39:20,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:20,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898570438] [2023-11-19 07:39:20,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:20,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 07:39:20,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:20,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898570438] [2023-11-19 07:39:20,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898570438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:20,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:20,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:20,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080682740] [2023-11-19 07:39:20,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:20,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:20,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:20,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:20,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:20,782 INFO L87 Difference]: Start difference. First operand 319 states and 515 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 07:39:20,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:20,917 INFO L93 Difference]: Finished difference Result 628 states and 1012 transitions. [2023-11-19 07:39:20,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:20,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 100 [2023-11-19 07:39:20,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:20,920 INFO L225 Difference]: With dead ends: 628 [2023-11-19 07:39:20,920 INFO L226 Difference]: Without dead ends: 321 [2023-11-19 07:39:20,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:20,922 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 164 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:20,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 168 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-19 07:39:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2023-11-19 07:39:20,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 1.6069182389937107) internal successors, (511), 318 states have internal predecessors, (511), 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 07:39:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 511 transitions. [2023-11-19 07:39:20,935 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 511 transitions. Word has length 100 [2023-11-19 07:39:20,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:20,936 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 511 transitions. [2023-11-19 07:39:20,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 07:39:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 511 transitions. [2023-11-19 07:39:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:39:20,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:20,938 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:20,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:39:20,939 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:20,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:20,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1669164027, now seen corresponding path program 1 times [2023-11-19 07:39:20,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:20,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709306197] [2023-11-19 07:39:20,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:20,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 07:39:21,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:21,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709306197] [2023-11-19 07:39:21,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709306197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:21,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:21,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:21,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158888145] [2023-11-19 07:39:21,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:21,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:21,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:21,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:21,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:21,045 INFO L87 Difference]: Start difference. First operand 319 states and 511 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:21,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:21,168 INFO L93 Difference]: Finished difference Result 666 states and 1069 transitions. [2023-11-19 07:39:21,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:21,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-11-19 07:39:21,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:21,171 INFO L225 Difference]: With dead ends: 666 [2023-11-19 07:39:21,171 INFO L226 Difference]: Without dead ends: 359 [2023-11-19 07:39:21,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:21,173 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 167 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:21,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 187 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:21,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-19 07:39:21,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 346. [2023-11-19 07:39:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.5913043478260869) internal successors, (549), 345 states have internal predecessors, (549), 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 07:39:21,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 549 transitions. [2023-11-19 07:39:21,186 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 549 transitions. Word has length 101 [2023-11-19 07:39:21,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:21,186 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 549 transitions. [2023-11-19 07:39:21,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:21,187 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 549 transitions. [2023-11-19 07:39:21,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 07:39:21,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:21,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:21,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:39:21,189 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:21,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:21,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2037731856, now seen corresponding path program 1 times [2023-11-19 07:39:21,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:21,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362155408] [2023-11-19 07:39:21,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:21,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:21,319 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 07:39:21,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:21,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362155408] [2023-11-19 07:39:21,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362155408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:21,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:21,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:21,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442515921] [2023-11-19 07:39:21,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:21,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:21,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:21,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:21,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:21,322 INFO L87 Difference]: Start difference. First operand 346 states and 549 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 07:39:21,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:21,462 INFO L93 Difference]: Finished difference Result 693 states and 1102 transitions. [2023-11-19 07:39:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:21,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 102 [2023-11-19 07:39:21,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:21,466 INFO L225 Difference]: With dead ends: 693 [2023-11-19 07:39:21,466 INFO L226 Difference]: Without dead ends: 359 [2023-11-19 07:39:21,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:21,468 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 166 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:21,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 187 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:21,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-19 07:39:21,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 346. [2023-11-19 07:39:21,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.5768115942028986) internal successors, (544), 345 states have internal predecessors, (544), 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 07:39:21,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 544 transitions. [2023-11-19 07:39:21,486 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 544 transitions. Word has length 102 [2023-11-19 07:39:21,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:21,486 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 544 transitions. [2023-11-19 07:39:21,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 07:39:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 544 transitions. [2023-11-19 07:39:21,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 07:39:21,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:21,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:21,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:39:21,489 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:21,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1016781359, now seen corresponding path program 1 times [2023-11-19 07:39:21,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:21,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525617873] [2023-11-19 07:39:21,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:21,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-19 07:39:21,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525617873] [2023-11-19 07:39:21,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525617873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:21,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:21,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857392553] [2023-11-19 07:39:21,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:21,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:21,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:21,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:21,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:21,616 INFO L87 Difference]: Start difference. First operand 346 states and 544 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 07:39:21,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:21,727 INFO L93 Difference]: Finished difference Result 705 states and 1105 transitions. [2023-11-19 07:39:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:21,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 106 [2023-11-19 07:39:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:21,730 INFO L225 Difference]: With dead ends: 705 [2023-11-19 07:39:21,730 INFO L226 Difference]: Without dead ends: 371 [2023-11-19 07:39:21,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:21,732 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 173 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:21,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 171 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:21,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-19 07:39:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 367. [2023-11-19 07:39:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 366 states have (on average 1.5546448087431695) internal successors, (569), 366 states have internal predecessors, (569), 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 07:39:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 569 transitions. [2023-11-19 07:39:21,748 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 569 transitions. Word has length 106 [2023-11-19 07:39:21,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:21,748 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 569 transitions. [2023-11-19 07:39:21,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 07:39:21,749 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 569 transitions. [2023-11-19 07:39:21,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-19 07:39:21,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:21,751 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:21,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:39:21,751 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:21,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:21,752 INFO L85 PathProgramCache]: Analyzing trace with hash 837455014, now seen corresponding path program 1 times [2023-11-19 07:39:21,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:21,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663883138] [2023-11-19 07:39:21,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:21,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-19 07:39:21,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:21,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663883138] [2023-11-19 07:39:21,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663883138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:21,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:21,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:21,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441261064] [2023-11-19 07:39:21,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:21,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:21,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:21,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:21,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:21,871 INFO L87 Difference]: Start difference. First operand 367 states and 569 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 07:39:22,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:22,010 INFO L93 Difference]: Finished difference Result 726 states and 1124 transitions. [2023-11-19 07:39:22,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:22,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 107 [2023-11-19 07:39:22,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:22,013 INFO L225 Difference]: With dead ends: 726 [2023-11-19 07:39:22,014 INFO L226 Difference]: Without dead ends: 371 [2023-11-19 07:39:22,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,015 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 172 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:22,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 171 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:22,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-19 07:39:22,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 367. [2023-11-19 07:39:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 366 states have (on average 1.5382513661202186) internal successors, (563), 366 states have internal predecessors, (563), 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 07:39:22,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 563 transitions. [2023-11-19 07:39:22,031 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 563 transitions. Word has length 107 [2023-11-19 07:39:22,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:22,031 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 563 transitions. [2023-11-19 07:39:22,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 07:39:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 563 transitions. [2023-11-19 07:39:22,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 07:39:22,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:22,034 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:22,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:39:22,035 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:22,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:22,035 INFO L85 PathProgramCache]: Analyzing trace with hash 346550706, now seen corresponding path program 1 times [2023-11-19 07:39:22,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:22,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147401607] [2023-11-19 07:39:22,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:22,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-19 07:39:22,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:22,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147401607] [2023-11-19 07:39:22,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147401607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:22,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:22,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:22,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335594167] [2023-11-19 07:39:22,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:22,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:22,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:22,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:22,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,136 INFO L87 Difference]: Start difference. First operand 367 states and 563 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 07:39:22,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:22,192 INFO L93 Difference]: Finished difference Result 1071 states and 1643 transitions. [2023-11-19 07:39:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:22,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 122 [2023-11-19 07:39:22,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:22,197 INFO L225 Difference]: With dead ends: 1071 [2023-11-19 07:39:22,198 INFO L226 Difference]: Without dead ends: 716 [2023-11-19 07:39:22,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,199 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 147 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:22,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 597 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:22,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-11-19 07:39:22,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2023-11-19 07:39:22,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.5314685314685315) internal successors, (1095), 715 states have internal predecessors, (1095), 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 07:39:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1095 transitions. [2023-11-19 07:39:22,228 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1095 transitions. Word has length 122 [2023-11-19 07:39:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:22,229 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 1095 transitions. [2023-11-19 07:39:22,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 07:39:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1095 transitions. [2023-11-19 07:39:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 07:39:22,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:22,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:22,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:39:22,235 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:22,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:22,236 INFO L85 PathProgramCache]: Analyzing trace with hash -550842572, now seen corresponding path program 1 times [2023-11-19 07:39:22,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:22,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535865724] [2023-11-19 07:39:22,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:22,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:39:22,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:22,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535865724] [2023-11-19 07:39:22,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535865724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:22,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:22,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:22,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541201814] [2023-11-19 07:39:22,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:22,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:22,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:22,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:22,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,318 INFO L87 Difference]: Start difference. First operand 716 states and 1095 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:22,373 INFO L93 Difference]: Finished difference Result 1729 states and 2647 transitions. [2023-11-19 07:39:22,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:22,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-11-19 07:39:22,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:22,380 INFO L225 Difference]: With dead ends: 1729 [2023-11-19 07:39:22,381 INFO L226 Difference]: Without dead ends: 1025 [2023-11-19 07:39:22,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,382 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 149 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:22,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 601 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-19 07:39:22,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1025. [2023-11-19 07:39:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1024 states have (on average 1.5302734375) internal successors, (1567), 1024 states have internal predecessors, (1567), 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 07:39:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1567 transitions. [2023-11-19 07:39:22,420 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1567 transitions. Word has length 122 [2023-11-19 07:39:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:22,421 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1567 transitions. [2023-11-19 07:39:22,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1567 transitions. [2023-11-19 07:39:22,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 07:39:22,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:22,424 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:22,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:39:22,424 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:22,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:22,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1864993778, now seen corresponding path program 1 times [2023-11-19 07:39:22,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:22,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794671081] [2023-11-19 07:39:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:22,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-19 07:39:22,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:22,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794671081] [2023-11-19 07:39:22,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794671081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:22,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:22,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:22,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504233651] [2023-11-19 07:39:22,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:22,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:22,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:22,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:22,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,483 INFO L87 Difference]: Start difference. First operand 1025 states and 1567 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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 07:39:22,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:22,560 INFO L93 Difference]: Finished difference Result 2387 states and 3651 transitions. [2023-11-19 07:39:22,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:22,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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) Word has length 122 [2023-11-19 07:39:22,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:22,569 INFO L225 Difference]: With dead ends: 2387 [2023-11-19 07:39:22,570 INFO L226 Difference]: Without dead ends: 1374 [2023-11-19 07:39:22,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,572 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 169 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:22,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 604 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:22,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2023-11-19 07:39:22,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1374. [2023-11-19 07:39:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1373 states have (on average 1.5287691187181354) internal successors, (2099), 1373 states have internal predecessors, (2099), 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 07:39:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 2099 transitions. [2023-11-19 07:39:22,624 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 2099 transitions. Word has length 122 [2023-11-19 07:39:22,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:22,625 INFO L495 AbstractCegarLoop]: Abstraction has 1374 states and 2099 transitions. [2023-11-19 07:39:22,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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 07:39:22,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 2099 transitions. [2023-11-19 07:39:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 07:39:22,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:22,629 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:22,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:39:22,629 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:22,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:22,630 INFO L85 PathProgramCache]: Analyzing trace with hash -168400268, now seen corresponding path program 1 times [2023-11-19 07:39:22,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:22,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816988325] [2023-11-19 07:39:22,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:22,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-19 07:39:22,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:22,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816988325] [2023-11-19 07:39:22,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816988325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:22,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:22,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:22,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819311934] [2023-11-19 07:39:22,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:22,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:22,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:22,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:22,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,685 INFO L87 Difference]: Start difference. First operand 1374 states and 2099 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 07:39:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:22,753 INFO L93 Difference]: Finished difference Result 3067 states and 4688 transitions. [2023-11-19 07:39:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:22,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 122 [2023-11-19 07:39:22,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:22,764 INFO L225 Difference]: With dead ends: 3067 [2023-11-19 07:39:22,764 INFO L226 Difference]: Without dead ends: 1705 [2023-11-19 07:39:22,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:22,767 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 191 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:22,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 424 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2023-11-19 07:39:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2023-11-19 07:39:22,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1704 states have (on average 1.528169014084507) internal successors, (2604), 1704 states have internal predecessors, (2604), 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 07:39:22,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2604 transitions. [2023-11-19 07:39:22,835 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2604 transitions. Word has length 122 [2023-11-19 07:39:22,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:22,835 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2604 transitions. [2023-11-19 07:39:22,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 07:39:22,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2604 transitions. [2023-11-19 07:39:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-19 07:39:22,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:22,842 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:22,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:39:22,842 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:22,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:22,843 INFO L85 PathProgramCache]: Analyzing trace with hash 464840897, now seen corresponding path program 1 times [2023-11-19 07:39:22,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:22,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638292065] [2023-11-19 07:39:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:22,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:22,869 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:39:22,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419260972] [2023-11-19 07:39:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:22,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:22,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:22,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:22,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:39:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:23,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:39:23,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-19 07:39:23,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:23,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:23,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638292065] [2023-11-19 07:39:23,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:39:23,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419260972] [2023-11-19 07:39:23,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419260972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:23,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:23,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:23,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654733688] [2023-11-19 07:39:23,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:23,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:23,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:23,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:23,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:23,121 INFO L87 Difference]: Start difference. First operand 1705 states and 2604 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 07:39:23,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:23,377 INFO L93 Difference]: Finished difference Result 3398 states and 5188 transitions. [2023-11-19 07:39:23,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:23,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 200 [2023-11-19 07:39:23,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:23,389 INFO L225 Difference]: With dead ends: 3398 [2023-11-19 07:39:23,389 INFO L226 Difference]: Without dead ends: 1705 [2023-11-19 07:39:23,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:23,392 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 18 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:23,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 351 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:39:23,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2023-11-19 07:39:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2023-11-19 07:39:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1704 states have (on average 1.4906103286384977) internal successors, (2540), 1704 states have internal predecessors, (2540), 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 07:39:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2540 transitions. [2023-11-19 07:39:23,461 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2540 transitions. Word has length 200 [2023-11-19 07:39:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:23,461 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2540 transitions. [2023-11-19 07:39:23,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 07:39:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2540 transitions. [2023-11-19 07:39:23,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-19 07:39:23,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:23,469 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:23,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:23,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:39:23,692 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:23,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1576042511, now seen corresponding path program 1 times [2023-11-19 07:39:23,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:23,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475528143] [2023-11-19 07:39:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:23,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:39:23,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118974949] [2023-11-19 07:39:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:23,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:23,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:23,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:23,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:39:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:23,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:39:23,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-11-19 07:39:24,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:24,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:24,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475528143] [2023-11-19 07:39:24,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:39:24,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118974949] [2023-11-19 07:39:24,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118974949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:24,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:24,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:24,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651771752] [2023-11-19 07:39:24,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:24,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:24,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:24,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:24,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:24,008 INFO L87 Difference]: Start difference. First operand 1705 states and 2540 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 07:39:24,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:24,212 INFO L93 Difference]: Finished difference Result 3593 states and 5355 transitions. [2023-11-19 07:39:24,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:24,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 242 [2023-11-19 07:39:24,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:24,224 INFO L225 Difference]: With dead ends: 3593 [2023-11-19 07:39:24,224 INFO L226 Difference]: Without dead ends: 1696 [2023-11-19 07:39:24,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:24,227 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 16 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:24,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 340 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2023-11-19 07:39:24,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1696. [2023-11-19 07:39:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.447197640117994) internal successors, (2453), 1695 states have internal predecessors, (2453), 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 07:39:24,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2453 transitions. [2023-11-19 07:39:24,298 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2453 transitions. Word has length 242 [2023-11-19 07:39:24,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:24,299 INFO L495 AbstractCegarLoop]: Abstraction has 1696 states and 2453 transitions. [2023-11-19 07:39:24,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 07:39:24,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2453 transitions. [2023-11-19 07:39:24,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-19 07:39:24,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:24,307 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:24,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:24,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:24,529 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:24,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:24,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1752343372, now seen corresponding path program 1 times [2023-11-19 07:39:24,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:24,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635393459] [2023-11-19 07:39:24,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:24,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:24,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:39:24,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290191904] [2023-11-19 07:39:24,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:24,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:24,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:24,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:24,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:39:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:24,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:39:24,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-19 07:39:24,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:24,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:24,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635393459] [2023-11-19 07:39:24,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:39:24,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290191904] [2023-11-19 07:39:24,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290191904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:24,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:24,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:24,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145361636] [2023-11-19 07:39:24,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:24,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:24,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:24,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:24,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:25,000 INFO L87 Difference]: Start difference. First operand 1696 states and 2453 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:25,097 INFO L93 Difference]: Finished difference Result 4972 states and 7187 transitions. [2023-11-19 07:39:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2023-11-19 07:39:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:25,110 INFO L225 Difference]: With dead ends: 4972 [2023-11-19 07:39:25,110 INFO L226 Difference]: Without dead ends: 1997 [2023-11-19 07:39:25,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:25,115 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 134 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:25,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 595 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:25,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2023-11-19 07:39:25,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1995. [2023-11-19 07:39:25,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1994 states have (on average 1.4393179538615848) internal successors, (2870), 1994 states have internal predecessors, (2870), 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 07:39:25,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2870 transitions. [2023-11-19 07:39:25,193 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2870 transitions. Word has length 270 [2023-11-19 07:39:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:25,194 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 2870 transitions. [2023-11-19 07:39:25,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2870 transitions. [2023-11-19 07:39:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-11-19 07:39:25,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:25,202 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:25,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:25,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:25,424 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:25,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:25,425 INFO L85 PathProgramCache]: Analyzing trace with hash -508049610, now seen corresponding path program 1 times [2023-11-19 07:39:25,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:25,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999148592] [2023-11-19 07:39:25,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:25,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:25,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999148592] [2023-11-19 07:39:25,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413027620] [2023-11-19 07:39:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:25,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:25,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:25,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:25,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:39:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:25,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:39:25,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-11-19 07:39:25,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:25,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413027620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:25,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:25,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:25,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169980424] [2023-11-19 07:39:25,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:25,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:25,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:25,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:25,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:25,673 INFO L87 Difference]: Start difference. First operand 1995 states and 2870 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 07:39:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:25,852 INFO L93 Difference]: Finished difference Result 4100 states and 5896 transitions. [2023-11-19 07:39:25,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:25,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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) Word has length 308 [2023-11-19 07:39:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:25,865 INFO L225 Difference]: With dead ends: 4100 [2023-11-19 07:39:25,866 INFO L226 Difference]: Without dead ends: 2117 [2023-11-19 07:39:25,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:25,869 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 16 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:25,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 356 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2023-11-19 07:39:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2087. [2023-11-19 07:39:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 2086 states have (on average 1.429530201342282) internal successors, (2982), 2086 states have internal predecessors, (2982), 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 07:39:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2982 transitions. [2023-11-19 07:39:25,946 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2982 transitions. Word has length 308 [2023-11-19 07:39:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:25,946 INFO L495 AbstractCegarLoop]: Abstraction has 2087 states and 2982 transitions. [2023-11-19 07:39:25,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 07:39:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2982 transitions. [2023-11-19 07:39:25,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-11-19 07:39:25,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:25,955 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:25,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-19 07:39:26,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:26,176 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:26,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash -963417675, now seen corresponding path program 1 times [2023-11-19 07:39:26,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:26,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351648868] [2023-11-19 07:39:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:26,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:26,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:26,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351648868] [2023-11-19 07:39:26,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:26,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337819511] [2023-11-19 07:39:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:26,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:26,233 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:26,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:39:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:26,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:39:26,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:26,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 506 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-11-19 07:39:26,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:26,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337819511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:26,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:26,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:26,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392245486] [2023-11-19 07:39:26,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:26,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:26,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:26,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:26,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:26,449 INFO L87 Difference]: Start difference. First operand 2087 states and 2982 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:26,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:26,638 INFO L93 Difference]: Finished difference Result 4526 states and 6528 transitions. [2023-11-19 07:39:26,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:26,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2023-11-19 07:39:26,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:26,652 INFO L225 Difference]: With dead ends: 4526 [2023-11-19 07:39:26,652 INFO L226 Difference]: Without dead ends: 2369 [2023-11-19 07:39:26,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:26,658 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 97 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:26,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 266 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:26,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2023-11-19 07:39:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 2237. [2023-11-19 07:39:26,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2236 states have (on average 1.4275491949910555) internal successors, (3192), 2236 states have internal predecessors, (3192), 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 07:39:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3192 transitions. [2023-11-19 07:39:26,793 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3192 transitions. Word has length 329 [2023-11-19 07:39:26,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:26,793 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 3192 transitions. [2023-11-19 07:39:26,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3192 transitions. [2023-11-19 07:39:26,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-19 07:39:26,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:26,803 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:26,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:27,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:27,023 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:27,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:27,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1572961988, now seen corresponding path program 1 times [2023-11-19 07:39:27,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:27,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667908364] [2023-11-19 07:39:27,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:27,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:27,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:27,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667908364] [2023-11-19 07:39:27,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:27,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945195890] [2023-11-19 07:39:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:27,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:27,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:27,091 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:27,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:39:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:27,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:39:27,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 646 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2023-11-19 07:39:27,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:27,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945195890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:27,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:27,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:27,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182236305] [2023-11-19 07:39:27,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:27,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:27,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:27,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:27,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:27,308 INFO L87 Difference]: Start difference. First operand 2237 states and 3192 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 07:39:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:27,484 INFO L93 Difference]: Finished difference Result 4610 states and 6618 transitions. [2023-11-19 07:39:27,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:27,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 356 [2023-11-19 07:39:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:27,497 INFO L225 Difference]: With dead ends: 4610 [2023-11-19 07:39:27,498 INFO L226 Difference]: Without dead ends: 2315 [2023-11-19 07:39:27,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:27,502 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 119 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:27,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 225 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:27,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2023-11-19 07:39:27,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2237. [2023-11-19 07:39:27,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2236 states have (on average 1.424865831842576) internal successors, (3186), 2236 states have internal predecessors, (3186), 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 07:39:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3186 transitions. [2023-11-19 07:39:27,588 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3186 transitions. Word has length 356 [2023-11-19 07:39:27,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:27,589 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 3186 transitions. [2023-11-19 07:39:27,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 07:39:27,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3186 transitions. [2023-11-19 07:39:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-11-19 07:39:27,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:27,599 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:27,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:27,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:27,819 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:27,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1389305552, now seen corresponding path program 1 times [2023-11-19 07:39:27,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:27,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590990317] [2023-11-19 07:39:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:27,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:27,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:27,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590990317] [2023-11-19 07:39:27,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:27,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505646208] [2023-11-19 07:39:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:27,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:27,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:27,913 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:27,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:39:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:28,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:39:28,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 905 proven. 26 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-19 07:39:28,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:39:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 905 proven. 26 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-19 07:39:28,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505646208] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:39:28,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:39:28,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-19 07:39:28,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151729193] [2023-11-19 07:39:28,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:39:28,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:39:28,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:28,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:39:28,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:28,341 INFO L87 Difference]: Start difference. First operand 2237 states and 3186 transitions. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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 07:39:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:28,981 INFO L93 Difference]: Finished difference Result 5837 states and 8315 transitions. [2023-11-19 07:39:28,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:39:28,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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 374 [2023-11-19 07:39:28,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:29,022 INFO L225 Difference]: With dead ends: 5837 [2023-11-19 07:39:29,022 INFO L226 Difference]: Without dead ends: 3474 [2023-11-19 07:39:29,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 746 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:39:29,027 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 594 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:29,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 769 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:39:29,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3474 states. [2023-11-19 07:39:29,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3474 to 2240. [2023-11-19 07:39:29,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 2239 states have (on average 1.407771326485038) internal successors, (3152), 2239 states have internal predecessors, (3152), 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 07:39:29,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 3152 transitions. [2023-11-19 07:39:29,141 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 3152 transitions. Word has length 374 [2023-11-19 07:39:29,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:29,142 INFO L495 AbstractCegarLoop]: Abstraction has 2240 states and 3152 transitions. [2023-11-19 07:39:29,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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 07:39:29,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 3152 transitions. [2023-11-19 07:39:29,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2023-11-19 07:39:29,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:29,157 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:29,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:29,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 07:39:29,378 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:29,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:29,379 INFO L85 PathProgramCache]: Analyzing trace with hash 733306555, now seen corresponding path program 1 times [2023-11-19 07:39:29,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:29,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112431619] [2023-11-19 07:39:29,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:29,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:29,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:29,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112431619] [2023-11-19 07:39:29,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:29,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973648974] [2023-11-19 07:39:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:29,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:29,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:29,469 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:29,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:39:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:29,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:39:29,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:29,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2015 backedges. 998 proven. 0 refuted. 0 times theorem prover too weak. 1017 trivial. 0 not checked. [2023-11-19 07:39:29,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:29,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973648974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:29,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:29,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:29,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197362170] [2023-11-19 07:39:29,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:29,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:29,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:29,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:29,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:29,744 INFO L87 Difference]: Start difference. First operand 2240 states and 3152 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 07:39:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:29,927 INFO L93 Difference]: Finished difference Result 4486 states and 6302 transitions. [2023-11-19 07:39:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 441 [2023-11-19 07:39:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:29,933 INFO L225 Difference]: With dead ends: 4486 [2023-11-19 07:39:29,933 INFO L226 Difference]: Without dead ends: 2240 [2023-11-19 07:39:29,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:29,937 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 120 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:29,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 208 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:29,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2023-11-19 07:39:30,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2228. [2023-11-19 07:39:30,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2227 states have (on average 1.4072743601257296) internal successors, (3134), 2227 states have internal predecessors, (3134), 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 07:39:30,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3134 transitions. [2023-11-19 07:39:30,019 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 3134 transitions. Word has length 441 [2023-11-19 07:39:30,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:30,020 INFO L495 AbstractCegarLoop]: Abstraction has 2228 states and 3134 transitions. [2023-11-19 07:39:30,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 07:39:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 3134 transitions. [2023-11-19 07:39:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2023-11-19 07:39:30,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:30,034 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:30,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:30,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-19 07:39:30,248 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:30,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1804009558, now seen corresponding path program 1 times [2023-11-19 07:39:30,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:30,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955853945] [2023-11-19 07:39:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:30,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:30,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:30,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955853945] [2023-11-19 07:39:30,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:30,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651846419] [2023-11-19 07:39:30,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:30,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:30,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:30,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:30,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:39:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:30,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:39:30,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:30,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2338 backedges. 1323 proven. 0 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2023-11-19 07:39:30,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:30,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651846419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:30,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:30,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:30,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343494625] [2023-11-19 07:39:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:30,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:30,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:30,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:30,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:30,593 INFO L87 Difference]: Start difference. First operand 2228 states and 3134 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 07:39:30,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:30,758 INFO L93 Difference]: Finished difference Result 4660 states and 6554 transitions. [2023-11-19 07:39:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:30,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 474 [2023-11-19 07:39:30,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:30,764 INFO L225 Difference]: With dead ends: 4660 [2023-11-19 07:39:30,764 INFO L226 Difference]: Without dead ends: 2444 [2023-11-19 07:39:30,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:30,769 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 11 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:30,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 350 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:30,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2023-11-19 07:39:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2432. [2023-11-19 07:39:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 2431 states have (on average 1.3854380913204443) internal successors, (3368), 2431 states have internal predecessors, (3368), 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 07:39:30,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3368 transitions. [2023-11-19 07:39:30,860 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3368 transitions. Word has length 474 [2023-11-19 07:39:30,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:30,861 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3368 transitions. [2023-11-19 07:39:30,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 07:39:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3368 transitions. [2023-11-19 07:39:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2023-11-19 07:39:30,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:30,872 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:30,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:31,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 07:39:31,088 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:31,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1079863422, now seen corresponding path program 1 times [2023-11-19 07:39:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:31,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098900174] [2023-11-19 07:39:31,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:31,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:31,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:31,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098900174] [2023-11-19 07:39:31,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:31,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823486389] [2023-11-19 07:39:31,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:31,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:31,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:31,169 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:31,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:39:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:31,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:39:31,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:31,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3103 backedges. 1760 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2023-11-19 07:39:31,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:31,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823486389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:31,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:31,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:31,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15205462] [2023-11-19 07:39:31,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:31,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:31,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:31,435 INFO L87 Difference]: Start difference. First operand 2432 states and 3368 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 07:39:31,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:31,617 INFO L93 Difference]: Finished difference Result 5080 states and 7046 transitions. [2023-11-19 07:39:31,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:31,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 536 [2023-11-19 07:39:31,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:31,623 INFO L225 Difference]: With dead ends: 5080 [2023-11-19 07:39:31,624 INFO L226 Difference]: Without dead ends: 2660 [2023-11-19 07:39:31,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:31,628 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 11 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:31,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 350 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:31,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2023-11-19 07:39:31,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2648. [2023-11-19 07:39:31,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2647 states have (on average 1.365319229316207) internal successors, (3614), 2647 states have internal predecessors, (3614), 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 07:39:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3614 transitions. [2023-11-19 07:39:31,702 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3614 transitions. Word has length 536 [2023-11-19 07:39:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:31,703 INFO L495 AbstractCegarLoop]: Abstraction has 2648 states and 3614 transitions. [2023-11-19 07:39:31,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 07:39:31,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3614 transitions. [2023-11-19 07:39:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2023-11-19 07:39:31,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:31,712 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:31,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:31,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-19 07:39:31,934 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:31,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:31,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1639079990, now seen corresponding path program 1 times [2023-11-19 07:39:31,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:31,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563465313] [2023-11-19 07:39:31,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:31,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:32,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563465313] [2023-11-19 07:39:32,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:39:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059029996] [2023-11-19 07:39:32,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:32,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:32,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:32,049 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:32,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:39:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:32,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:39:32,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4010 backedges. 2316 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2023-11-19 07:39:32,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:39:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4010 backedges. 2316 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2023-11-19 07:39:32,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059029996] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:39:32,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:39:32,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-19 07:39:32,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011136451] [2023-11-19 07:39:32,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:39:32,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:39:32,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:32,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:39:32,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:32,472 INFO L87 Difference]: Start difference. First operand 2648 states and 3614 transitions. Second operand has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 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 07:39:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:32,886 INFO L93 Difference]: Finished difference Result 4850 states and 6676 transitions. [2023-11-19 07:39:32,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:39:32,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 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 602 [2023-11-19 07:39:32,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:32,888 INFO L225 Difference]: With dead ends: 4850 [2023-11-19 07:39:32,888 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:39:32,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1208 GetRequests, 1201 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:32,893 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 254 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:32,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 801 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:39:32,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:39:32,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:39:32,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:32,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:39:32,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 602 [2023-11-19 07:39:32,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:32,895 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:39:32,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 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 07:39:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:39:32,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:39:32,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:39:32,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:33,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-19 07:39:33,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:39:35,921 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 568) no Hoare annotation was computed. [2023-11-19 07:39:35,922 INFO L899 garLoopResultBuilder]: For program point L399(line 399) no Hoare annotation was computed. [2023-11-19 07:39:35,922 INFO L899 garLoopResultBuilder]: For program point L366(line 366) no Hoare annotation was computed. [2023-11-19 07:39:35,922 INFO L899 garLoopResultBuilder]: For program point L399-2(line 399) no Hoare annotation was computed. [2023-11-19 07:39:35,922 INFO L899 garLoopResultBuilder]: For program point L366-2(line 366) no Hoare annotation was computed. [2023-11-19 07:39:35,922 INFO L899 garLoopResultBuilder]: For program point L399-4(lines 399 405) no Hoare annotation was computed. [2023-11-19 07:39:35,922 INFO L899 garLoopResultBuilder]: For program point L366-4(lines 366 385) no Hoare annotation was computed. [2023-11-19 07:39:35,922 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 184 610) no Hoare annotation was computed. [2023-11-19 07:39:35,923 INFO L899 garLoopResultBuilder]: For program point L499(lines 499 503) no Hoare annotation was computed. [2023-11-19 07:39:35,923 INFO L899 garLoopResultBuilder]: For program point L367(line 367) no Hoare annotation was computed. [2023-11-19 07:39:35,923 INFO L899 garLoopResultBuilder]: For program point L367-2(line 367) no Hoare annotation was computed. [2023-11-19 07:39:35,923 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 157 619) no Hoare annotation was computed. [2023-11-19 07:39:35,923 INFO L899 garLoopResultBuilder]: For program point L367-4(lines 367 371) no Hoare annotation was computed. [2023-11-19 07:39:35,923 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 604) no Hoare annotation was computed. [2023-11-19 07:39:35,923 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 615) no Hoare annotation was computed. [2023-11-19 07:39:35,924 INFO L899 garLoopResultBuilder]: For program point L367-6(lines 366 383) no Hoare annotation was computed. [2023-11-19 07:39:35,924 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 626) no Hoare annotation was computed. [2023-11-19 07:39:35,924 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 471) no Hoare annotation was computed. [2023-11-19 07:39:35,924 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 145 623) no Hoare annotation was computed. [2023-11-19 07:39:35,924 INFO L899 garLoopResultBuilder]: For program point L335-1(line 335) no Hoare annotation was computed. [2023-11-19 07:39:35,924 INFO L899 garLoopResultBuilder]: For program point L335-3(lines 335 344) no Hoare annotation was computed. [2023-11-19 07:39:35,925 INFO L899 garLoopResultBuilder]: For program point L335-5(lines 335 344) no Hoare annotation was computed. [2023-11-19 07:39:35,925 INFO L899 garLoopResultBuilder]: For program point L666(lines 74 683) no Hoare annotation was computed. [2023-11-19 07:39:35,925 INFO L899 garLoopResultBuilder]: For program point $Ultimate##203(lines 397 434) no Hoare annotation was computed. [2023-11-19 07:39:35,925 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8482#1(lines 133 627) no Hoare annotation was computed. [2023-11-19 07:39:35,925 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 603) no Hoare annotation was computed. [2023-11-19 07:39:35,925 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 614) no Hoare annotation was computed. [2023-11-19 07:39:35,925 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 625) no Hoare annotation was computed. [2023-11-19 07:39:35,926 INFO L899 garLoopResultBuilder]: For program point L635(lines 635 663) no Hoare annotation was computed. [2023-11-19 07:39:35,926 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 256) no Hoare annotation was computed. [2023-11-19 07:39:35,926 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 219 596) no Hoare annotation was computed. [2023-11-19 07:39:35,926 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 660) no Hoare annotation was computed. [2023-11-19 07:39:35,926 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 574) no Hoare annotation was computed. [2023-11-19 07:39:35,926 INFO L899 garLoopResultBuilder]: For program point L537(lines 537 541) no Hoare annotation was computed. [2023-11-19 07:39:35,926 INFO L899 garLoopResultBuilder]: For program point L570-2(lines 570 574) no Hoare annotation was computed. [2023-11-19 07:39:35,927 INFO L899 garLoopResultBuilder]: For program point L537-2(lines 219 596) no Hoare annotation was computed. [2023-11-19 07:39:35,927 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 343) no Hoare annotation was computed. [2023-11-19 07:39:35,927 INFO L899 garLoopResultBuilder]: For program point L372-1(line 372) no Hoare annotation was computed. [2023-11-19 07:39:35,927 INFO L899 garLoopResultBuilder]: For program point L372-3(lines 372 382) no Hoare annotation was computed. [2023-11-19 07:39:35,927 INFO L899 garLoopResultBuilder]: For program point L670(lines 670 674) no Hoare annotation was computed. [2023-11-19 07:39:35,927 INFO L899 garLoopResultBuilder]: For program point L637(lines 637 646) no Hoare annotation was computed. [2023-11-19 07:39:35,927 INFO L899 garLoopResultBuilder]: For program point L670-2(lines 670 674) no Hoare annotation was computed. [2023-11-19 07:39:35,928 INFO L899 garLoopResultBuilder]: For program point L637-2(lines 636 658) no Hoare annotation was computed. [2023-11-19 07:39:35,928 INFO L899 garLoopResultBuilder]: For program point L472(lines 472 483) no Hoare annotation was computed. [2023-11-19 07:39:35,928 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 443) no Hoare annotation was computed. [2023-11-19 07:39:35,928 INFO L899 garLoopResultBuilder]: For program point L373(lines 356 391) no Hoare annotation was computed. [2023-11-19 07:39:35,928 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 246) no Hoare annotation was computed. [2023-11-19 07:39:35,928 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 602) no Hoare annotation was computed. [2023-11-19 07:39:35,928 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 613) no Hoare annotation was computed. [2023-11-19 07:39:35,929 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 624) no Hoare annotation was computed. [2023-11-19 07:39:35,929 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 109 665) the Hoare annotation is: (let ((.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse4 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse6 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8657))) (.cse7 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse8 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse5 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse9 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (.cse12 (not (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (.cse1 (not (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse11 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse0 (not (= 8673 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse10 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse14 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse13 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (.cse15 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse9 .cse7 .cse8) (and .cse10 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) .cse11) (and .cse5 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 (not (= 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) .cse8 .cse13) (and .cse10 .cse12) (and .cse9 .cse14 .cse15) (and .cse5 .cse14 .cse15) (and .cse13 .cse12) (and .cse9 .cse12) (and .cse1 .cse11) (and (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse0 .cse10) (and .cse14 .cse13 .cse15))) [2023-11-19 07:39:35,930 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2023-11-19 07:39:35,930 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 685 696) no Hoare annotation was computed. [2023-11-19 07:39:35,930 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 643) no Hoare annotation was computed. [2023-11-19 07:39:35,930 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2023-11-19 07:39:35,930 INFO L899 garLoopResultBuilder]: For program point L408-1(line 408) no Hoare annotation was computed. [2023-11-19 07:39:35,931 INFO L899 garLoopResultBuilder]: For program point L408-3(lines 408 428) no Hoare annotation was computed. [2023-11-19 07:39:35,931 INFO L899 garLoopResultBuilder]: For program point L409(line 409) no Hoare annotation was computed. [2023-11-19 07:39:35,931 INFO L899 garLoopResultBuilder]: For program point L409-2(line 409) no Hoare annotation was computed. [2023-11-19 07:39:35,931 INFO L899 garLoopResultBuilder]: For program point L409-4(lines 409 415) no Hoare annotation was computed. [2023-11-19 07:39:35,931 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 127 629) no Hoare annotation was computed. [2023-11-19 07:39:35,931 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 601) no Hoare annotation was computed. [2023-11-19 07:39:35,931 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 612) no Hoare annotation was computed. [2023-11-19 07:39:35,932 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 623) no Hoare annotation was computed. [2023-11-19 07:39:35,932 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 634) no Hoare annotation was computed. [2023-11-19 07:39:35,932 INFO L899 garLoopResultBuilder]: For program point L476(lines 476 480) no Hoare annotation was computed. [2023-11-19 07:39:35,932 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 514) no Hoare annotation was computed. [2023-11-19 07:39:35,932 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 219 596) no Hoare annotation was computed. [2023-11-19 07:39:35,932 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 252) no Hoare annotation was computed. [2023-11-19 07:39:35,932 INFO L899 garLoopResultBuilder]: For program point L214(lines 214 600) no Hoare annotation was computed. [2023-11-19 07:39:35,933 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 611) no Hoare annotation was computed. [2023-11-19 07:39:35,933 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 622) no Hoare annotation was computed. [2023-11-19 07:39:35,933 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 633) no Hoare annotation was computed. [2023-11-19 07:39:35,933 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 91) no Hoare annotation was computed. [2023-11-19 07:39:35,933 INFO L899 garLoopResultBuilder]: For program point L282(lines 282 286) no Hoare annotation was computed. [2023-11-19 07:39:35,933 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 202 604) no Hoare annotation was computed. [2023-11-19 07:39:35,933 INFO L899 garLoopResultBuilder]: For program point L580(lines 580 590) no Hoare annotation was computed. [2023-11-19 07:39:35,934 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 580 590) no Hoare annotation was computed. [2023-11-19 07:39:35,934 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 320) no Hoare annotation was computed. [2023-11-19 07:39:35,934 INFO L899 garLoopResultBuilder]: For program point L316-2(lines 219 596) no Hoare annotation was computed. [2023-11-19 07:39:35,934 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 610) no Hoare annotation was computed. [2023-11-19 07:39:35,934 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 621) no Hoare annotation was computed. [2023-11-19 07:39:35,934 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 632) no Hoare annotation was computed. [2023-11-19 07:39:35,935 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 449 461) no Hoare annotation was computed. [2023-11-19 07:39:35,935 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2023-11-19 07:39:35,935 INFO L899 garLoopResultBuilder]: For program point L86-2(lines 83 91) no Hoare annotation was computed. [2023-11-19 07:39:35,935 INFO L899 garLoopResultBuilder]: For program point L681(lines 74 683) no Hoare annotation was computed. [2023-11-19 07:39:35,935 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 654) no Hoare annotation was computed. [2023-11-19 07:39:35,935 INFO L899 garLoopResultBuilder]: For program point L549(lines 549 554) no Hoare annotation was computed. [2023-11-19 07:39:35,935 INFO L899 garLoopResultBuilder]: For program point L417(lines 408 428) no Hoare annotation was computed. [2023-11-19 07:39:35,936 INFO L899 garLoopResultBuilder]: For program point L351(line 351) no Hoare annotation was computed. [2023-11-19 07:39:35,936 INFO L899 garLoopResultBuilder]: For program point L351-2(line 351) no Hoare annotation was computed. [2023-11-19 07:39:35,936 INFO L899 garLoopResultBuilder]: For program point L351-4(lines 351 355) no Hoare annotation was computed. [2023-11-19 07:39:35,936 INFO L899 garLoopResultBuilder]: For program point L351-6(lines 219 596) no Hoare annotation was computed. [2023-11-19 07:39:35,936 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 587) no Hoare annotation was computed. [2023-11-19 07:39:35,936 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 609) no Hoare annotation was computed. [2023-11-19 07:39:35,936 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 620) no Hoare annotation was computed. [2023-11-19 07:39:35,936 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 631) no Hoare annotation was computed. [2023-11-19 07:39:35,937 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_3#1(lines 214 600) no Hoare annotation was computed. [2023-11-19 07:39:35,937 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 457) no Hoare annotation was computed. [2023-11-19 07:39:35,937 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_default#1(lines 217 599) no Hoare annotation was computed. [2023-11-19 07:39:35,937 INFO L899 garLoopResultBuilder]: For program point L420(lines 420 424) no Hoare annotation was computed. [2023-11-19 07:39:35,937 INFO L899 garLoopResultBuilder]: For program point L222(lines 115 633) no Hoare annotation was computed. [2023-11-19 07:39:35,938 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 178 612) no Hoare annotation was computed. [2023-11-19 07:39:35,938 INFO L899 garLoopResultBuilder]: For program point L520(lines 520 524) no Hoare annotation was computed. [2023-11-19 07:39:35,938 INFO L899 garLoopResultBuilder]: For program point L520-2(lines 520 524) no Hoare annotation was computed. [2023-11-19 07:39:35,938 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:39:35,938 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 608) no Hoare annotation was computed. [2023-11-19 07:39:35,938 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 619) no Hoare annotation was computed. [2023-11-19 07:39:35,938 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 630) no Hoare annotation was computed. [2023-11-19 07:39:35,939 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 196 606) no Hoare annotation was computed. [2023-11-19 07:39:35,939 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2023-11-19 07:39:35,939 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 74 683) no Hoare annotation was computed. [2023-11-19 07:39:35,939 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_returnLabel#1(lines 19 684) no Hoare annotation was computed. [2023-11-19 07:39:35,939 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-11-19 07:39:35,939 INFO L899 garLoopResultBuilder]: For program point L93-2(line 93) no Hoare annotation was computed. [2023-11-19 07:39:35,939 INFO L899 garLoopResultBuilder]: For program point L93-4(lines 93 101) no Hoare annotation was computed. [2023-11-19 07:39:35,940 INFO L899 garLoopResultBuilder]: For program point L93-5(lines 74 683) no Hoare annotation was computed. [2023-11-19 07:39:35,940 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 607) no Hoare annotation was computed. [2023-11-19 07:39:35,940 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 618) no Hoare annotation was computed. [2023-11-19 07:39:35,940 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 629) no Hoare annotation was computed. [2023-11-19 07:39:35,940 INFO L899 garLoopResultBuilder]: For program point $Ultimate##139(line 335) no Hoare annotation was computed. [2023-11-19 07:39:35,940 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-11-19 07:39:35,940 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:39:35,941 INFO L899 garLoopResultBuilder]: For program point L94-2(line 94) no Hoare annotation was computed. [2023-11-19 07:39:35,941 INFO L899 garLoopResultBuilder]: For program point L94-4(lines 94 98) no Hoare annotation was computed. [2023-11-19 07:39:35,941 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 208 602) no Hoare annotation was computed. [2023-11-19 07:39:35,941 INFO L899 garLoopResultBuilder]: For program point L359(line 359) no Hoare annotation was computed. [2023-11-19 07:39:35,941 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 330) no Hoare annotation was computed. [2023-11-19 07:39:35,941 INFO L899 garLoopResultBuilder]: For program point L359-2(line 359) no Hoare annotation was computed. [2023-11-19 07:39:35,941 INFO L899 garLoopResultBuilder]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2023-11-19 07:39:35,942 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2023-11-19 07:39:35,942 INFO L899 garLoopResultBuilder]: For program point L359-4(lines 359 390) no Hoare annotation was computed. [2023-11-19 07:39:35,942 INFO L899 garLoopResultBuilder]: For program point L227-2(lines 219 596) no Hoare annotation was computed. [2023-11-19 07:39:35,942 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 190 608) no Hoare annotation was computed. [2023-11-19 07:39:35,942 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:39:35,942 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 136 626) no Hoare annotation was computed. [2023-11-19 07:39:35,942 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 563) no Hoare annotation was computed. [2023-11-19 07:39:35,942 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_12292#1(lines 112 634) no Hoare annotation was computed. [2023-11-19 07:39:35,943 INFO L899 garLoopResultBuilder]: For program point $Ultimate##285(lines 635 663) no Hoare annotation was computed. [2023-11-19 07:39:35,943 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 606) no Hoare annotation was computed. [2023-11-19 07:39:35,943 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 617) no Hoare annotation was computed. [2023-11-19 07:39:35,943 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 628) no Hoare annotation was computed. [2023-11-19 07:39:35,943 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 389) no Hoare annotation was computed. [2023-11-19 07:39:35,943 INFO L899 garLoopResultBuilder]: For program point L362-1(lines 362 389) no Hoare annotation was computed. [2023-11-19 07:39:35,943 INFO L899 garLoopResultBuilder]: For program point $Ultimate##217(line 408) no Hoare annotation was computed. [2023-11-19 07:39:35,944 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:39:35,944 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 677) no Hoare annotation was computed. [2023-11-19 07:39:35,944 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 386) no Hoare annotation was computed. [2023-11-19 07:39:35,944 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 276) no Hoare annotation was computed. [2023-11-19 07:39:35,944 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 169 615) no Hoare annotation was computed. [2023-11-19 07:39:35,944 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 270) no Hoare annotation was computed. [2023-11-19 07:39:35,944 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 605) no Hoare annotation was computed. [2023-11-19 07:39:35,945 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 616) no Hoare annotation was computed. [2023-11-19 07:39:35,945 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 627) no Hoare annotation was computed. [2023-11-19 07:39:35,945 INFO L899 garLoopResultBuilder]: For program point $Ultimate##239(lines 449 461) no Hoare annotation was computed. [2023-11-19 07:39:35,945 INFO L899 garLoopResultBuilder]: For program point L530(lines 530 535) no Hoare annotation was computed. [2023-11-19 07:39:35,945 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 429) no Hoare annotation was computed. [2023-11-19 07:39:35,945 INFO L899 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2023-11-19 07:39:35,945 INFO L899 garLoopResultBuilder]: For program point L299-2(lines 219 596) no Hoare annotation was computed. [2023-11-19 07:39:35,949 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:35,951 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:39:35,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:39:35 BoogieIcfgContainer [2023-11-19 07:39:35,973 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:39:35,974 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:39:35,974 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:39:35,974 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:39:35,975 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:17" (3/4) ... [2023-11-19 07:39:35,978 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:39:36,005 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 07:39:36,007 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:39:36,008 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:39:36,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:39:36,208 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:39:36,209 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:39:36,209 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:39:36,210 INFO L158 Benchmark]: Toolchain (without parser) took 20597.88ms. Allocated memory was 123.7MB in the beginning and 358.6MB in the end (delta: 234.9MB). Free memory was 89.1MB in the beginning and 162.1MB in the end (delta: -73.0MB). Peak memory consumption was 163.9MB. Max. memory is 16.1GB. [2023-11-19 07:39:36,211 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:36,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.45ms. Allocated memory is still 123.7MB. Free memory was 89.1MB in the beginning and 72.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:39:36,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.02ms. Allocated memory is still 123.7MB. Free memory was 72.8MB in the beginning and 69.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:39:36,212 INFO L158 Benchmark]: Boogie Preprocessor took 76.74ms. Allocated memory is still 123.7MB. Free memory was 69.4MB in the beginning and 66.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:39:36,215 INFO L158 Benchmark]: RCFGBuilder took 1035.29ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 66.9MB in the beginning and 115.2MB in the end (delta: -48.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2023-11-19 07:39:36,215 INFO L158 Benchmark]: TraceAbstraction took 18702.77ms. Allocated memory was 163.6MB in the beginning and 358.6MB in the end (delta: 195.0MB). Free memory was 114.3MB in the beginning and 173.7MB in the end (delta: -59.3MB). Peak memory consumption was 201.2MB. Max. memory is 16.1GB. [2023-11-19 07:39:36,218 INFO L158 Benchmark]: Witness Printer took 235.16ms. Allocated memory is still 358.6MB. Free memory was 173.7MB in the beginning and 162.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:39:36,227 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.45ms. Allocated memory is still 123.7MB. Free memory was 89.1MB in the beginning and 72.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.02ms. Allocated memory is still 123.7MB. Free memory was 72.8MB in the beginning and 69.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.74ms. Allocated memory is still 123.7MB. Free memory was 69.4MB in the beginning and 66.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1035.29ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 66.9MB in the beginning and 115.2MB in the end (delta: -48.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * TraceAbstraction took 18702.77ms. Allocated memory was 163.6MB in the beginning and 358.6MB in the end (delta: 195.0MB). Free memory was 114.3MB in the beginning and 173.7MB in the end (delta: -59.3MB). Peak memory consumption was 201.2MB. Max. memory is 16.1GB. * Witness Printer took 235.16ms. Allocated memory is still 358.6MB. Free memory was 173.7MB in the beginning and 162.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 677]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.6s, OverallIterations: 28, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4227 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4227 mSDsluCounter, 9139 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3077 mSDsCounter, 784 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2958 IncrementalHoareTripleChecker+Invalid, 3742 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 784 mSolverCounterUnsat, 6062 mSDtfsCounter, 2958 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5160 GetRequests, 5119 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2648occurred in iteration=27, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 28 MinimizatonAttempts, 1572 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 94 NumberOfFragments, 208 HoareAnnotationTreeSize, 1 FomulaSimplifications, 4518 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 1 FomulaSimplificationsInter, 2969 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 9161 NumberOfCodeBlocks, 9161 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 6687 ConstructedInterpolants, 0 QuantifiedInterpolants, 9404 SizeOfPredicates, 2 NumberOfNonLiveVariables, 6596 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 30 InterpolantComputations, 26 PerfectInterpolantSequences, 23746/23850 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!((8673 == s__state)) && !((8448 == s__state))) && !((s__state == 8561))) && !((s__state == 8545))) && !((s__state == 8481))) && (2 == blastFlag)) && !((s__state == 8657))) && !((s__state == 8672))) && !((8497 == s__state))) && !((s__state == 8480))) || ((((((((!((8673 == s__state)) && !((8448 == s__state))) && !((s__state == 8561))) && !((s__state == 8545))) && !((s__state == 8481))) && !((s__state == 8657))) && (blastFlag == 1)) && !((8497 == s__state))) && !((s__state == 8480)))) || (((3 == blastFlag) && (s__s3__tmp__next_state___0 <= 3)) && (s__state <= 8448))) || ((2 == blastFlag) && !((0 == s__hit)))) || (((((((((!((8673 == s__state)) && !((8448 == s__state))) && !((s__state == 8561))) && !((s__state == 8545))) && !((s__state == 8481))) && !((s__state == 8657))) && !((8497 == s__state))) && !((8496 == s__state))) && !((s__state == 8480))) && (blastFlag == 0))) || ((3 == blastFlag) && !((0 == s__hit)))) || (((blastFlag == 1) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8576))) || (((2 == blastFlag) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8576))) || ((blastFlag == 0) && !((0 == s__hit)))) || ((blastFlag == 1) && !((0 == s__hit)))) || (!((8448 == s__state)) && (s__state <= 8448))) || (((8672 <= s__state) && !((8673 == s__state))) && (3 == blastFlag))) || (((s__s3__tmp__next_state___0 <= 8576) && (blastFlag == 0)) && (s__state <= 8576))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:39:36,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecdf81ad-366f-4ca4-b2f5-8cdf930a8218/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 Writing output log to file Ultimate.log Result: TRUE