./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya --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 b8cfead7c1f307a9ba2676fad86c005fa434c5b4bc168c34fe90a644ea9973b2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:08:21,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:08:21,288 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:08:21,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:08:21,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:08:21,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:08:21,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:08:21,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:08:21,319 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:08:21,320 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:08:21,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:08:21,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:08:21,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:08:21,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:08:21,323 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:08:21,324 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:08:21,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:08:21,325 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:08:21,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:08:21,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:08:21,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:08:21,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:08:21,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:08:21,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:08:21,329 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:08:21,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:08:21,330 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:08:21,330 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:08:21,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:08:21,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:08:21,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:08:21,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:08:21,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:08:21,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:08:21,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:08:21,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:08:21,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:08:21,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:08:21,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:08:21,334 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:08:21,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:08:21,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:08:21,334 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_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8cfead7c1f307a9ba2676fad86c005fa434c5b4bc168c34fe90a644ea9973b2 [2023-11-29 02:08:21,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:08:21,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:08:21,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:08:21,585 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:08:21,591 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:08:21,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2023-11-29 02:08:24,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:08:24,544 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:08:24,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2023-11-29 02:08:24,559 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/data/c1fa7297f/becd13ee4c594197a7442ae7edea309d/FLAGa017cb80f [2023-11-29 02:08:24,574 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/data/c1fa7297f/becd13ee4c594197a7442ae7edea309d [2023-11-29 02:08:24,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:08:24,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:08:24,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:08:24,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:08:24,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:08:24,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:24,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ad733d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24, skipping insertion in model container [2023-11-29 02:08:24,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:24,634 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:08:24,840 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_5d214b4b-fcd2-4c2a-baac-e93338bfacff/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2023-11-29 02:08:24,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:08:24,860 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:08:24,913 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_5d214b4b-fcd2-4c2a-baac-e93338bfacff/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2023-11-29 02:08:24,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:08:24,929 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:08:24,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24 WrapperNode [2023-11-29 02:08:24,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:08:24,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:08:24,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:08:24,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:08:24,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:24,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:24,984 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 575 [2023-11-29 02:08:24,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:08:24,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:08:24,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:08:24,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:08:24,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:24,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,017 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:08:25,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:08:25,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:08:25,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:08:25,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:08:25,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (1/1) ... [2023-11-29 02:08:25,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:08:25,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:25,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:08:25,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:08:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:08:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:08:25,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:08:25,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:08:25,212 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:08:25,215 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:08:25,236 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 02:08:25,701 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2023-11-29 02:08:25,701 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2023-11-29 02:08:25,701 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:08:25,748 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:08:25,748 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:08:25,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:08:25 BoogieIcfgContainer [2023-11-29 02:08:25,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:08:25,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:08:25,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:08:25,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:08:25,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:08:24" (1/3) ... [2023-11-29 02:08:25,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fead05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:08:25, skipping insertion in model container [2023-11-29 02:08:25,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:08:24" (2/3) ... [2023-11-29 02:08:25,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fead05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:08:25, skipping insertion in model container [2023-11-29 02:08:25,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:08:25" (3/3) ... [2023-11-29 02:08:25,758 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2023-11-29 02:08:25,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:08:25,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:08:25,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:08:25,833 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;@2e2fdfd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:08:25,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:08:25,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.795275590551181) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 02:08:25,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:25,848 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] [2023-11-29 02:08:25,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:25,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:25,854 INFO L85 PathProgramCache]: Analyzing trace with hash -885659394, now seen corresponding path program 1 times [2023-11-29 02:08:25,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:25,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214432858] [2023-11-29 02:08:25,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:25,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:08:26,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:26,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214432858] [2023-11-29 02:08:26,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214432858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:26,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:26,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:08:26,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939445568] [2023-11-29 02:08:26,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:26,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:26,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:26,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:26,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:26,231 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.795275590551181) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 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 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:26,428 INFO L93 Difference]: Finished difference Result 262 states and 463 transitions. [2023-11-29 02:08:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:26,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-29 02:08:26,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:26,441 INFO L225 Difference]: With dead ends: 262 [2023-11-29 02:08:26,441 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 02:08:26,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:26,447 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:26,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 302 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:08:26,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 02:08:26,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 121. [2023-11-29 02:08:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.5083333333333333) internal successors, (181), 120 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 181 transitions. [2023-11-29 02:08:26,487 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 181 transitions. Word has length 42 [2023-11-29 02:08:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:26,487 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 181 transitions. [2023-11-29 02:08:26,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,488 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 181 transitions. [2023-11-29 02:08:26,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 02:08:26,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:26,491 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:26,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:08:26,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:26,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1758820122, now seen corresponding path program 1 times [2023-11-29 02:08:26,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:26,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535980969] [2023-11-29 02:08:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:26,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:26,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:08:26,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:26,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535980969] [2023-11-29 02:08:26,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535980969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:26,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:26,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:26,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453718462] [2023-11-29 02:08:26,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:26,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:26,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:26,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:26,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:26,622 INFO L87 Difference]: Start difference. First operand 121 states and 181 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:26,665 INFO L93 Difference]: Finished difference Result 323 states and 494 transitions. [2023-11-29 02:08:26,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:26,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-11-29 02:08:26,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:26,669 INFO L225 Difference]: With dead ends: 323 [2023-11-29 02:08:26,669 INFO L226 Difference]: Without dead ends: 219 [2023-11-29 02:08:26,670 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 [2023-11-29 02:08:26,672 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 110 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:26,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 333 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:08:26,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-29 02:08:26,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-29 02:08:26,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.5137614678899083) internal successors, (330), 218 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions. [2023-11-29 02:08:26,720 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 57 [2023-11-29 02:08:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:26,720 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 330 transitions. [2023-11-29 02:08:26,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,721 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions. [2023-11-29 02:08:26,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 02:08:26,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:26,725 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:26,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:08:26,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:26,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:26,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1335173400, now seen corresponding path program 1 times [2023-11-29 02:08:26,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:26,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415826779] [2023-11-29 02:08:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:26,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:08:26,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:26,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415826779] [2023-11-29 02:08:26,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415826779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:26,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:26,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:08:26,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740702830] [2023-11-29 02:08:26,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:26,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:26,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:26,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:26,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:26,817 INFO L87 Difference]: Start difference. First operand 219 states and 330 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:26,845 INFO L93 Difference]: Finished difference Result 423 states and 642 transitions. [2023-11-29 02:08:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:26,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-11-29 02:08:26,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:26,847 INFO L225 Difference]: With dead ends: 423 [2023-11-29 02:08:26,848 INFO L226 Difference]: Without dead ends: 221 [2023-11-29 02:08:26,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:26,850 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 6 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:26,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 315 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:08:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-29 02:08:26,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2023-11-29 02:08:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.509090909090909) internal successors, (332), 220 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 332 transitions. [2023-11-29 02:08:26,866 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 332 transitions. Word has length 57 [2023-11-29 02:08:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:26,866 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 332 transitions. [2023-11-29 02:08:26,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 332 transitions. [2023-11-29 02:08:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:08:26,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:26,870 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:26,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:08:26,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:26,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:26,872 INFO L85 PathProgramCache]: Analyzing trace with hash 808134731, now seen corresponding path program 1 times [2023-11-29 02:08:26,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:26,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555591152] [2023-11-29 02:08:26,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:26,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:08:26,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:26,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555591152] [2023-11-29 02:08:26,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555591152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:26,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:26,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:26,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544375427] [2023-11-29 02:08:26,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:26,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:26,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:26,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:26,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:26,951 INFO L87 Difference]: Start difference. First operand 221 states and 332 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:27,122 INFO L93 Difference]: Finished difference Result 512 states and 793 transitions. [2023-11-29 02:08:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:27,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:08:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:27,125 INFO L225 Difference]: With dead ends: 512 [2023-11-29 02:08:27,125 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 02:08:27,126 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 [2023-11-29 02:08:27,128 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 14 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:27,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 263 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:08:27,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 02:08:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 302. [2023-11-29 02:08:27,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.4053156146179402) internal successors, (423), 301 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 423 transitions. [2023-11-29 02:08:27,145 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 423 transitions. Word has length 77 [2023-11-29 02:08:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:27,146 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 423 transitions. [2023-11-29 02:08:27,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 423 transitions. [2023-11-29 02:08:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:08:27,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:27,150 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:27,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:08:27,151 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:27,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1231781453, now seen corresponding path program 1 times [2023-11-29 02:08:27,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:27,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484127640] [2023-11-29 02:08:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:27,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:08:27,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:27,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484127640] [2023-11-29 02:08:27,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484127640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:27,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:27,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:27,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489726831] [2023-11-29 02:08:27,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:27,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:27,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:27,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:27,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:27,215 INFO L87 Difference]: Start difference. First operand 302 states and 423 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:27,344 INFO L93 Difference]: Finished difference Result 613 states and 867 transitions. [2023-11-29 02:08:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:27,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:08:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:27,347 INFO L225 Difference]: With dead ends: 613 [2023-11-29 02:08:27,347 INFO L226 Difference]: Without dead ends: 330 [2023-11-29 02:08:27,348 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 [2023-11-29 02:08:27,349 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 12 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:27,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 264 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:08:27,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-29 02:08:27,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 324. [2023-11-29 02:08:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.3931888544891642) internal successors, (450), 323 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 450 transitions. [2023-11-29 02:08:27,362 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 450 transitions. Word has length 77 [2023-11-29 02:08:27,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:27,363 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 450 transitions. [2023-11-29 02:08:27,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,363 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 450 transitions. [2023-11-29 02:08:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 02:08:27,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:27,365 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:27,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:08:27,365 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:27,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash -382395928, now seen corresponding path program 1 times [2023-11-29 02:08:27,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:27,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109542828] [2023-11-29 02:08:27,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:27,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:27,432 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-29 02:08:27,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:27,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109542828] [2023-11-29 02:08:27,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109542828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:27,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:27,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:27,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855829447] [2023-11-29 02:08:27,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:27,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:27,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:27,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:27,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:27,435 INFO L87 Difference]: Start difference. First operand 324 states and 450 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) [2023-11-29 02:08:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:27,576 INFO L93 Difference]: Finished difference Result 701 states and 997 transitions. [2023-11-29 02:08:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:27,577 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 96 [2023-11-29 02:08:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:27,580 INFO L225 Difference]: With dead ends: 701 [2023-11-29 02:08:27,580 INFO L226 Difference]: Without dead ends: 396 [2023-11-29 02:08:27,581 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 [2023-11-29 02:08:27,582 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:27,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 263 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:08:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-29 02:08:27,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2023-11-29 02:08:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 1.3692722371967656) internal successors, (508), 371 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 508 transitions. [2023-11-29 02:08:27,597 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 508 transitions. Word has length 96 [2023-11-29 02:08:27,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:27,598 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 508 transitions. [2023-11-29 02:08:27,598 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) [2023-11-29 02:08:27,599 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 508 transitions. [2023-11-29 02:08:27,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 02:08:27,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:27,601 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 02:08:27,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:08:27,601 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:27,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash -376941569, now seen corresponding path program 1 times [2023-11-29 02:08:27,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:27,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483633468] [2023-11-29 02:08:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:27,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-29 02:08:27,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:27,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483633468] [2023-11-29 02:08:27,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483633468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:27,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:27,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:27,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9929557] [2023-11-29 02:08:27,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:27,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:27,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:27,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:27,715 INFO L87 Difference]: Start difference. First operand 372 states and 508 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:27,757 INFO L93 Difference]: Finished difference Result 888 states and 1222 transitions. [2023-11-29 02:08:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:27,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 116 [2023-11-29 02:08:27,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:27,761 INFO L225 Difference]: With dead ends: 888 [2023-11-29 02:08:27,761 INFO L226 Difference]: Without dead ends: 535 [2023-11-29 02:08:27,762 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 [2023-11-29 02:08:27,763 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 110 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:27,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 467 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:08:27,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-29 02:08:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-11-29 02:08:27,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.3707865168539326) internal successors, (732), 534 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 732 transitions. [2023-11-29 02:08:27,779 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 732 transitions. Word has length 116 [2023-11-29 02:08:27,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:27,779 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 732 transitions. [2023-11-29 02:08:27,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,780 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 732 transitions. [2023-11-29 02:08:27,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 02:08:27,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:27,782 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 02:08:27,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:08:27,782 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:27,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:27,783 INFO L85 PathProgramCache]: Analyzing trace with hash -128795075, now seen corresponding path program 1 times [2023-11-29 02:08:27,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:27,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81702504] [2023-11-29 02:08:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:27,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:27,844 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:08:27,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:27,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81702504] [2023-11-29 02:08:27,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81702504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:27,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:27,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:27,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422224786] [2023-11-29 02:08:27,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:27,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:27,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:27,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:27,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:27,847 INFO L87 Difference]: Start difference. First operand 535 states and 732 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:27,891 INFO L93 Difference]: Finished difference Result 1238 states and 1700 transitions. [2023-11-29 02:08:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:27,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 116 [2023-11-29 02:08:27,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:27,896 INFO L225 Difference]: With dead ends: 1238 [2023-11-29 02:08:27,896 INFO L226 Difference]: Without dead ends: 722 [2023-11-29 02:08:27,897 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 [2023-11-29 02:08:27,898 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:27,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 465 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:08:27,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-29 02:08:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2023-11-29 02:08:27,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.3675450762829404) internal successors, (986), 721 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 986 transitions. [2023-11-29 02:08:27,920 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 986 transitions. Word has length 116 [2023-11-29 02:08:27,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:27,921 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 986 transitions. [2023-11-29 02:08:27,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:27,921 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 986 transitions. [2023-11-29 02:08:27,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 02:08:27,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:27,924 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:27,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 02:08:27,925 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:27,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:27,925 INFO L85 PathProgramCache]: Analyzing trace with hash 864017877, now seen corresponding path program 1 times [2023-11-29 02:08:27,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:27,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204631682] [2023-11-29 02:08:27,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:27,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:28,015 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 02:08:28,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:28,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204631682] [2023-11-29 02:08:28,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204631682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:28,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:28,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:28,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686192601] [2023-11-29 02:08:28,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:28,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:28,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:28,018 INFO L87 Difference]: Start difference. First operand 722 states and 986 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:28,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:28,224 INFO L93 Difference]: Finished difference Result 1551 states and 2174 transitions. [2023-11-29 02:08:28,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:28,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 176 [2023-11-29 02:08:28,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:28,229 INFO L225 Difference]: With dead ends: 1551 [2023-11-29 02:08:28,229 INFO L226 Difference]: Without dead ends: 848 [2023-11-29 02:08:28,230 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 [2023-11-29 02:08:28,231 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 35 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:28,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 258 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:08:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2023-11-29 02:08:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 842. [2023-11-29 02:08:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.3329369797859691) internal successors, (1121), 841 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1121 transitions. [2023-11-29 02:08:28,250 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1121 transitions. Word has length 176 [2023-11-29 02:08:28,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:28,251 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1121 transitions. [2023-11-29 02:08:28,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1121 transitions. [2023-11-29 02:08:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 02:08:28,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:28,254 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 02:08:28,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 02:08:28,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:28,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:28,255 INFO L85 PathProgramCache]: Analyzing trace with hash -405478866, now seen corresponding path program 1 times [2023-11-29 02:08:28,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:28,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104899775] [2023-11-29 02:08:28,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:28,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-29 02:08:28,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:28,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104899775] [2023-11-29 02:08:28,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104899775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:28,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:28,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:28,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516966156] [2023-11-29 02:08:28,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:28,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:28,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:28,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:28,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:28,334 INFO L87 Difference]: Start difference. First operand 842 states and 1121 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:28,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:28,489 INFO L93 Difference]: Finished difference Result 1833 states and 2519 transitions. [2023-11-29 02:08:28,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:28,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 217 [2023-11-29 02:08:28,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:28,494 INFO L225 Difference]: With dead ends: 1833 [2023-11-29 02:08:28,494 INFO L226 Difference]: Without dead ends: 962 [2023-11-29 02:08:28,495 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 [2023-11-29 02:08:28,496 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 36 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:28,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 258 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:08:28,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-11-29 02:08:28,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2023-11-29 02:08:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 961 states have (on average 1.3121748178980228) internal successors, (1261), 961 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:28,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1261 transitions. [2023-11-29 02:08:28,515 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1261 transitions. Word has length 217 [2023-11-29 02:08:28,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:28,515 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 1261 transitions. [2023-11-29 02:08:28,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:28,515 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1261 transitions. [2023-11-29 02:08:28,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 02:08:28,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:28,519 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 02:08:28,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 02:08:28,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:28,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:28,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1242759366, now seen corresponding path program 1 times [2023-11-29 02:08:28,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:28,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233618987] [2023-11-29 02:08:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:28,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:28,620 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-29 02:08:28,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:28,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233618987] [2023-11-29 02:08:28,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233618987] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:08:28,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675640137] [2023-11-29 02:08:28,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:28,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:28,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:28,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:28,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:08:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:28,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:08:28,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-29 02:08:28,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-29 02:08:28,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675640137] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:08:28,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:08:28,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-29 02:08:28,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101607462] [2023-11-29 02:08:28,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:28,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:08:28,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:28,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:08:28,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:08:28,963 INFO L87 Difference]: Start difference. First operand 962 states and 1261 transitions. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:29,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:29,647 INFO L93 Difference]: Finished difference Result 4182 states and 5807 transitions. [2023-11-29 02:08:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:08:29,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 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 244 [2023-11-29 02:08:29,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:29,661 INFO L225 Difference]: With dead ends: 4182 [2023-11-29 02:08:29,661 INFO L226 Difference]: Without dead ends: 3239 [2023-11-29 02:08:29,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:08:29,664 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 337 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:29,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1162 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:08:29,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2023-11-29 02:08:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 2375. [2023-11-29 02:08:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2374 states have (on average 1.3163437236731255) internal successors, (3125), 2374 states have internal predecessors, (3125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3125 transitions. [2023-11-29 02:08:29,720 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3125 transitions. Word has length 244 [2023-11-29 02:08:29,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:29,721 INFO L495 AbstractCegarLoop]: Abstraction has 2375 states and 3125 transitions. [2023-11-29 02:08:29,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3125 transitions. [2023-11-29 02:08:29,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 02:08:29,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:29,726 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 02:08:29,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:08:29,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:29,927 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:29,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:29,927 INFO L85 PathProgramCache]: Analyzing trace with hash 657987716, now seen corresponding path program 1 times [2023-11-29 02:08:29,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:29,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513114406] [2023-11-29 02:08:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:29,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2023-11-29 02:08:30,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:30,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513114406] [2023-11-29 02:08:30,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513114406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:30,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:30,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:30,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660496954] [2023-11-29 02:08:30,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:30,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:30,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:30,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:30,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:30,044 INFO L87 Difference]: Start difference. First operand 2375 states and 3125 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:30,109 INFO L93 Difference]: Finished difference Result 6595 states and 8751 transitions. [2023-11-29 02:08:30,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:30,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 244 [2023-11-29 02:08:30,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:30,122 INFO L225 Difference]: With dead ends: 6595 [2023-11-29 02:08:30,122 INFO L226 Difference]: Without dead ends: 3044 [2023-11-29 02:08:30,126 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 [2023-11-29 02:08:30,127 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 108 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:30,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 477 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:08:30,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2023-11-29 02:08:30,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2944. [2023-11-29 02:08:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2943 states have (on average 1.3377505946313286) internal successors, (3937), 2943 states have internal predecessors, (3937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 3937 transitions. [2023-11-29 02:08:30,195 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 3937 transitions. Word has length 244 [2023-11-29 02:08:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:30,195 INFO L495 AbstractCegarLoop]: Abstraction has 2944 states and 3937 transitions. [2023-11-29 02:08:30,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 3937 transitions. [2023-11-29 02:08:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-29 02:08:30,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:30,200 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 02:08:30,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 02:08:30,200 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:30,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash 557502408, now seen corresponding path program 1 times [2023-11-29 02:08:30,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:30,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590264361] [2023-11-29 02:08:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:30,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:30,268 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-29 02:08:30,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:30,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590264361] [2023-11-29 02:08:30,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590264361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:30,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:30,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:30,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472344197] [2023-11-29 02:08:30,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:30,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:30,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:30,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:30,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:30,271 INFO L87 Difference]: Start difference. First operand 2944 states and 3937 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:30,409 INFO L93 Difference]: Finished difference Result 6253 states and 8427 transitions. [2023-11-29 02:08:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 288 [2023-11-29 02:08:30,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:30,423 INFO L225 Difference]: With dead ends: 6253 [2023-11-29 02:08:30,423 INFO L226 Difference]: Without dead ends: 3328 [2023-11-29 02:08:30,426 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 [2023-11-29 02:08:30,427 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 17 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:30,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 263 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:08:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2023-11-29 02:08:30,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3256. [2023-11-29 02:08:30,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 3255 states have (on average 1.3238095238095238) internal successors, (4309), 3255 states have internal predecessors, (4309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4309 transitions. [2023-11-29 02:08:30,578 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4309 transitions. Word has length 288 [2023-11-29 02:08:30,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:30,578 INFO L495 AbstractCegarLoop]: Abstraction has 3256 states and 4309 transitions. [2023-11-29 02:08:30,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4309 transitions. [2023-11-29 02:08:30,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-11-29 02:08:30,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:30,588 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 02:08:30,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 02:08:30,589 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:30,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:30,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1731457442, now seen corresponding path program 1 times [2023-11-29 02:08:30,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:30,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79125419] [2023-11-29 02:08:30,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:30,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:30,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 592 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2023-11-29 02:08:30,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:30,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79125419] [2023-11-29 02:08:30,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79125419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:30,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:30,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:30,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154282569] [2023-11-29 02:08:30,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:30,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:30,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:30,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:30,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:30,697 INFO L87 Difference]: Start difference. First operand 3256 states and 4309 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:30,858 INFO L93 Difference]: Finished difference Result 6841 states and 9099 transitions. [2023-11-29 02:08:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:30,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 310 [2023-11-29 02:08:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:30,877 INFO L225 Difference]: With dead ends: 6841 [2023-11-29 02:08:30,877 INFO L226 Difference]: Without dead ends: 3604 [2023-11-29 02:08:30,882 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 [2023-11-29 02:08:30,882 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 10 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 263 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 [2023-11-29 02:08:30,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 263 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:08:30,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2023-11-29 02:08:30,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 2943. [2023-11-29 02:08:30,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2943 states, 2942 states have (on average 1.3150917743031951) internal successors, (3869), 2942 states have internal predecessors, (3869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2943 states to 2943 states and 3869 transitions. [2023-11-29 02:08:30,975 INFO L78 Accepts]: Start accepts. Automaton has 2943 states and 3869 transitions. Word has length 310 [2023-11-29 02:08:30,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:30,976 INFO L495 AbstractCegarLoop]: Abstraction has 2943 states and 3869 transitions. [2023-11-29 02:08:30,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:30,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2943 states and 3869 transitions. [2023-11-29 02:08:30,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-11-29 02:08:30,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:30,985 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 02:08:30,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 02:08:30,986 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:30,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:30,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1462364412, now seen corresponding path program 1 times [2023-11-29 02:08:30,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:30,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671039292] [2023-11-29 02:08:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:31,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-11-29 02:08:31,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:31,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671039292] [2023-11-29 02:08:31,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671039292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:31,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:31,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:31,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844137972] [2023-11-29 02:08:31,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:31,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:31,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:31,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:31,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:31,134 INFO L87 Difference]: Start difference. First operand 2943 states and 3869 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:31,246 INFO L93 Difference]: Finished difference Result 8779 states and 11543 transitions. [2023-11-29 02:08:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 341 [2023-11-29 02:08:31,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:31,276 INFO L225 Difference]: With dead ends: 8779 [2023-11-29 02:08:31,277 INFO L226 Difference]: Without dead ends: 5855 [2023-11-29 02:08:31,281 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 [2023-11-29 02:08:31,282 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 124 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:31,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 469 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:08:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2023-11-29 02:08:31,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5676. [2023-11-29 02:08:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5676 states, 5675 states have (on average 1.317885462555066) internal successors, (7479), 5675 states have internal predecessors, (7479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5676 states to 5676 states and 7479 transitions. [2023-11-29 02:08:31,471 INFO L78 Accepts]: Start accepts. Automaton has 5676 states and 7479 transitions. Word has length 341 [2023-11-29 02:08:31,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:31,472 INFO L495 AbstractCegarLoop]: Abstraction has 5676 states and 7479 transitions. [2023-11-29 02:08:31,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:31,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5676 states and 7479 transitions. [2023-11-29 02:08:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-11-29 02:08:31,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:31,484 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 02:08:31,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 02:08:31,484 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:31,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:31,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1398457759, now seen corresponding path program 1 times [2023-11-29 02:08:31,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:31,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311062678] [2023-11-29 02:08:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:31,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:31,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 826 proven. 25 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2023-11-29 02:08:31,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311062678] [2023-11-29 02:08:31,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311062678] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:08:31,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490107194] [2023-11-29 02:08:31,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:31,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:31,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:31,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:31,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:08:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:31,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:08:31,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 644 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2023-11-29 02:08:32,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:08:32,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490107194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:32,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:08:32,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-29 02:08:32,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948272443] [2023-11-29 02:08:32,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:32,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:32,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:32,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:32,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:08:32,150 INFO L87 Difference]: Start difference. First operand 5676 states and 7479 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:32,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:32,223 INFO L93 Difference]: Finished difference Result 6512 states and 8591 transitions. [2023-11-29 02:08:32,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:32,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 342 [2023-11-29 02:08:32,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:32,247 INFO L225 Difference]: With dead ends: 6512 [2023-11-29 02:08:32,247 INFO L226 Difference]: Without dead ends: 4705 [2023-11-29 02:08:32,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:08:32,252 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 82 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:32,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 461 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:08:32,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4705 states. [2023-11-29 02:08:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4705 to 3691. [2023-11-29 02:08:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3691 states, 3690 states have (on average 1.3181571815718158) internal successors, (4864), 3690 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:32,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 4864 transitions. [2023-11-29 02:08:32,402 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 4864 transitions. Word has length 342 [2023-11-29 02:08:32,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:32,403 INFO L495 AbstractCegarLoop]: Abstraction has 3691 states and 4864 transitions. [2023-11-29 02:08:32,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 4864 transitions. [2023-11-29 02:08:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2023-11-29 02:08:32,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:32,417 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:32,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 02:08:32,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:08:32,618 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:32,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash 924929642, now seen corresponding path program 1 times [2023-11-29 02:08:32,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:32,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748642888] [2023-11-29 02:08:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:32,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:32,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-29 02:08:32,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:32,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748642888] [2023-11-29 02:08:32,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748642888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:08:32,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118371203] [2023-11-29 02:08:32,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:32,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:32,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:32,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:32,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:08:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:32,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:08:32,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-29 02:08:33,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-29 02:08:33,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118371203] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:08:33,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:08:33,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-29 02:08:33,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675080343] [2023-11-29 02:08:33,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:33,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:08:33,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:33,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:08:33,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:08:33,182 INFO L87 Difference]: Start difference. First operand 3691 states and 4864 transitions. Second operand has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:33,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:33,731 INFO L93 Difference]: Finished difference Result 9136 states and 12427 transitions. [2023-11-29 02:08:33,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:08:33,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 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 401 [2023-11-29 02:08:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:33,745 INFO L225 Difference]: With dead ends: 9136 [2023-11-29 02:08:33,745 INFO L226 Difference]: Without dead ends: 5305 [2023-11-29 02:08:33,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:08:33,752 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 443 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:33,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 513 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:08:33,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5305 states. [2023-11-29 02:08:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5305 to 4664. [2023-11-29 02:08:33,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4664 states, 4663 states have (on average 1.3858031310315249) internal successors, (6462), 4663 states have internal predecessors, (6462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:33,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4664 states to 4664 states and 6462 transitions. [2023-11-29 02:08:33,888 INFO L78 Accepts]: Start accepts. Automaton has 4664 states and 6462 transitions. Word has length 401 [2023-11-29 02:08:33,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:33,889 INFO L495 AbstractCegarLoop]: Abstraction has 4664 states and 6462 transitions. [2023-11-29 02:08:33,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 4664 states and 6462 transitions. [2023-11-29 02:08:33,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2023-11-29 02:08:33,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:33,902 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 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, 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] [2023-11-29 02:08:33,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:08:34,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:34,103 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:34,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:34,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1391389276, now seen corresponding path program 1 times [2023-11-29 02:08:34,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:34,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373541929] [2023-11-29 02:08:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:34,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2967 backedges. 1576 proven. 0 refuted. 0 times theorem prover too weak. 1391 trivial. 0 not checked. [2023-11-29 02:08:34,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:34,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373541929] [2023-11-29 02:08:34,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373541929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:34,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:34,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:08:34,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232169665] [2023-11-29 02:08:34,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:34,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:08:34,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:34,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:08:34,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:08:34,313 INFO L87 Difference]: Start difference. First operand 4664 states and 6462 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:34,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:34,506 INFO L93 Difference]: Finished difference Result 9412 states and 12997 transitions. [2023-11-29 02:08:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:08:34,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 489 [2023-11-29 02:08:34,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:34,517 INFO L225 Difference]: With dead ends: 9412 [2023-11-29 02:08:34,517 INFO L226 Difference]: Without dead ends: 4767 [2023-11-29 02:08:34,523 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 [2023-11-29 02:08:34,523 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 14 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:34,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 263 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:08:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2023-11-29 02:08:34,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4716. [2023-11-29 02:08:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4716 states, 4715 states have (on average 1.3575821845174973) internal successors, (6401), 4715 states have internal predecessors, (6401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6401 transitions. [2023-11-29 02:08:34,653 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6401 transitions. Word has length 489 [2023-11-29 02:08:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:34,654 INFO L495 AbstractCegarLoop]: Abstraction has 4716 states and 6401 transitions. [2023-11-29 02:08:34,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6401 transitions. [2023-11-29 02:08:34,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-29 02:08:34,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:34,667 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 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, 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] [2023-11-29 02:08:34,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 02:08:34,667 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:34,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2120440082, now seen corresponding path program 1 times [2023-11-29 02:08:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:34,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982766471] [2023-11-29 02:08:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:34,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1646 proven. 193 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2023-11-29 02:08:35,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982766471] [2023-11-29 02:08:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982766471] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:08:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954381693] [2023-11-29 02:08:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:35,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:35,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:35,129 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:35,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:08:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:35,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:08:35,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:36,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1694 proven. 226 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2023-11-29 02:08:36,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1783 proven. 137 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2023-11-29 02:08:37,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954381693] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:08:37,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:08:37,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-29 02:08:37,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130668123] [2023-11-29 02:08:37,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:37,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:08:37,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:37,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:08:37,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:08:37,792 INFO L87 Difference]: Start difference. First operand 4716 states and 6401 transitions. Second operand has 11 states, 11 states have (on average 36.90909090909091) internal successors, (406), 11 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:40,340 INFO L93 Difference]: Finished difference Result 22216 states and 29998 transitions. [2023-11-29 02:08:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 02:08:40,341 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 36.90909090909091) internal successors, (406), 11 states have internal predecessors, (406), 0 states have call successors, (0), 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 493 [2023-11-29 02:08:40,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:40,373 INFO L225 Difference]: With dead ends: 22216 [2023-11-29 02:08:40,373 INFO L226 Difference]: Without dead ends: 17339 [2023-11-29 02:08:40,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=196, Invalid=454, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:08:40,380 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1178 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:40,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 1553 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 02:08:40,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17339 states. [2023-11-29 02:08:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17339 to 16165. [2023-11-29 02:08:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16165 states, 16164 states have (on average 1.3097624350408315) internal successors, (21171), 16164 states have internal predecessors, (21171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:40,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16165 states to 16165 states and 21171 transitions. [2023-11-29 02:08:40,870 INFO L78 Accepts]: Start accepts. Automaton has 16165 states and 21171 transitions. Word has length 493 [2023-11-29 02:08:40,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:40,870 INFO L495 AbstractCegarLoop]: Abstraction has 16165 states and 21171 transitions. [2023-11-29 02:08:40,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 36.90909090909091) internal successors, (406), 11 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:40,871 INFO L276 IsEmpty]: Start isEmpty. Operand 16165 states and 21171 transitions. [2023-11-29 02:08:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-11-29 02:08:40,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:40,907 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 18, 16, 16, 14, 14, 12, 12, 10, 10, 10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2023-11-29 02:08:40,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 02:08:41,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:41,111 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:41,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2129564387, now seen corresponding path program 2 times [2023-11-29 02:08:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:41,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588780041] [2023-11-29 02:08:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:41,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-29 02:08:41,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:41,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588780041] [2023-11-29 02:08:41,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588780041] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:08:41,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651466647] [2023-11-29 02:08:41,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:08:41,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:41,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:41,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:41,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:08:41,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:08:41,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:08:41,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:08:41,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:41,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-29 02:08:41,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-29 02:08:41,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651466647] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:08:41,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:08:41,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-29 02:08:41,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542938411] [2023-11-29 02:08:41,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:41,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:08:41,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:41,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:08:41,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:08:41,787 INFO L87 Difference]: Start difference. First operand 16165 states and 21171 transitions. Second operand has 8 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:42,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:42,356 INFO L93 Difference]: Finished difference Result 22128 states and 28837 transitions. [2023-11-29 02:08:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:08:42,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 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 561 [2023-11-29 02:08:42,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:42,357 INFO L225 Difference]: With dead ends: 22128 [2023-11-29 02:08:42,357 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:08:42,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1132 GetRequests, 1122 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:08:42,375 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 218 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:42,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 728 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:08:42,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:08:42,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:08:42,377 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) [2023-11-29 02:08:42,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:08:42,377 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 561 [2023-11-29 02:08:42,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:42,377 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:08:42,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:08:42,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:08:42,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:08:42,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:08:42,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:08:42,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:42,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:08:48,737 WARN L293 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 464 DAG size of output: 469 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 02:08:52,773 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 272) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 608) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 619) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 630) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 186 613) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 398) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 338) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 159 622) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 538) no Hoare annotation was computed. [2023-11-29 02:08:52,774 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 147 626) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 571) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 307) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L303-2(lines 221 599) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 607) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 618) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 629) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 397) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L370-1(lines 370 397) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 394) no Hoare annotation was computed. [2023-11-29 02:08:52,775 INFO L899 garLoopResultBuilder]: For program point L669(lines 76 686) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 606) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 617) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 628) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 437) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 258) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L241-2(lines 221 599) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 666) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 413) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L374(lines 374 393) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 663) no Hoare annotation was computed. [2023-11-29 02:08:52,776 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 577) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 544) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 511) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L573-2(lines 573 577) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 221 599) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L375-2(lines 374 391) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 605) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 616) no Hoare annotation was computed. [2023-11-29 02:08:52,777 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 627) no Hoare annotation was computed. [2023-11-29 02:08:52,778 INFO L895 garLoopResultBuilder]: At program point L111-2(lines 111 668) the Hoare annotation is: (let ((.cse24 (+ |ULTIMATE.start_ssl3_accept_~ag_X~0#1| |ULTIMATE.start_ssl3_accept_~ag_Y~0#1|))) (let ((.cse23 (div .cse24 2147483648))) (let ((.cse25 (* .cse23 4294967296)) (.cse26 (+ (* 2 |ULTIMATE.start_ssl3_accept_~ag_X~0#1|) (* 2 |ULTIMATE.start_ssl3_accept_~ag_Y~0#1|))) (.cse19 (mod .cse24 2147483648))) (let ((.cse21 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (.cse22 (< 1073741823 .cse19)) (.cse20 (= (+ .cse25 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse26))) (let ((.cse12 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse1 (= 8466 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse7 (or .cse20 (and (<= (+ 1073741824 (* .cse23 2147483648)) .cse24) (= (+ .cse25 |ULTIMATE.start_ssl3_accept_~s__state~0#1| 4294967296) .cse26)))) (.cse18 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8495)) (.cse9 (or .cse22 (< .cse19 4249))) (.cse11 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse14 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656)) (.cse15 (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (.cse13 (not .cse21)) (.cse2 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse3 (<= 8497 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse16 (<= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse8 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8655)) (.cse0 (or (< .cse19 4328) .cse22)) (.cse10 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse6 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse17 (= 3 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse3 .cse4) (and (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (and .cse2 .cse3 .cse4 .cse7 .cse8) (and .cse5 .cse9) (and .cse10 .cse11 .cse12 .cse13) (and .cse2 .cse13) (and .cse0 .cse14 .cse2 .cse4) (and .cse0 .cse2 .cse12 .cse4 .cse8) (and .cse15 .cse5) (and .cse0 .cse2 .cse6 .cse3 .cse4) (and .cse0 .cse2 (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 .cse5 .cse16 .cse8) (and .cse5 .cse6 .cse17) (and .cse0 .cse1 .cse5) (and .cse15 .cse10 .cse13) (and .cse18 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496) .cse2 .cse7) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528) .cse0 .cse2) (and .cse18 .cse2 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8495) .cse9) (and .cse10 .cse11 .cse6 .cse13) (and (< (* 2 .cse19) (+ |ULTIMATE.start_ssl3_accept_~s__state~0#1| 1)) .cse14 .cse5) (and .cse5 .cse20) (and .cse15 .cse0 .cse10 .cse4) (and .cse5 .cse13) (and .cse0 .cse2 (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 .cse2 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and .cse0 .cse2 .cse3 .cse16 .cse4 .cse8) (and .cse0 .cse10 .cse6 .cse17 .cse21))))))) [2023-11-29 02:08:52,779 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 677) no Hoare annotation was computed. [2023-11-29 02:08:52,779 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 649) no Hoare annotation was computed. [2023-11-29 02:08:52,779 INFO L899 garLoopResultBuilder]: For program point L673-2(lines 673 677) no Hoare annotation was computed. [2023-11-29 02:08:52,779 INFO L899 garLoopResultBuilder]: For program point L640-2(lines 639 661) no Hoare annotation was computed. [2023-11-29 02:08:52,779 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 479) no Hoare annotation was computed. [2023-11-29 02:08:52,780 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 343 352) no Hoare annotation was computed. [2023-11-29 02:08:52,780 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 129 632) no Hoare annotation was computed. [2023-11-29 02:08:52,780 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 646) no Hoare annotation was computed. [2023-11-29 02:08:52,780 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 604) no Hoare annotation was computed. [2023-11-29 02:08:52,780 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 615) no Hoare annotation was computed. [2023-11-29 02:08:52,780 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 626) no Hoare annotation was computed. [2023-11-29 02:08:52,780 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 637) no Hoare annotation was computed. [2023-11-29 02:08:52,781 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2023-11-29 02:08:52,781 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 491) no Hoare annotation was computed. [2023-11-29 02:08:52,781 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 451) no Hoare annotation was computed. [2023-11-29 02:08:52,781 INFO L899 garLoopResultBuilder]: For program point L381(lines 364 399) no Hoare annotation was computed. [2023-11-29 02:08:52,781 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 254) no Hoare annotation was computed. [2023-11-29 02:08:52,781 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 603) no Hoare annotation was computed. [2023-11-29 02:08:52,781 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 614) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 204 607) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 625) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 636) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 613) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 624) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 635) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 593) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2023-11-29 02:08:52,782 INFO L899 garLoopResultBuilder]: For program point L484(lines 484 488) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 92) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 85 93) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 328) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L684(lines 76 686) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L651(lines 651 657) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point $Ultimate##176(lines 457 469) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 557) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 180 615) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 612) no Hoare annotation was computed. [2023-11-29 02:08:52,783 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 623) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 634) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 198 609) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 221 599) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L224(lines 117 636) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 76 686) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 611) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 622) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 633) no Hoare annotation was computed. [2023-11-29 02:08:52,784 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point L523-2(lines 523 527) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 457 469) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point $Ultimate##130(lines 343 352) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 210 605) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point L425(lines 416 436) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 363) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point L359-2(lines 221 599) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 103) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point L95-1(lines 76 686) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 192 611) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:08:52,785 INFO L899 garLoopResultBuilder]: For program point $Ultimate##158(lines 405 442) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 610) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 621) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 632) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 100) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 138 629) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 465) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point $Ultimate##166(lines 416 436) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 233) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point L229-2(lines 221 599) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point L428(lines 428 432) no Hoare annotation was computed. [2023-11-29 02:08:52,786 INFO L899 garLoopResultBuilder]: For program point $Ultimate##219(lines 638 666) no Hoare annotation was computed. [2023-11-29 02:08:52,787 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 680) no Hoare annotation was computed. [2023-11-29 02:08:52,787 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 609) no Hoare annotation was computed. [2023-11-29 02:08:52,787 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 620) no Hoare annotation was computed. [2023-11-29 02:08:52,787 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 631) no Hoare annotation was computed. [2023-11-29 02:08:52,787 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 171 618) no Hoare annotation was computed. [2023-11-29 02:08:52,787 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 566) no Hoare annotation was computed. [2023-11-29 02:08:52,788 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 500) no Hoare annotation was computed. [2023-11-29 02:08:52,788 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 280) no Hoare annotation was computed. [2023-11-29 02:08:52,791 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:52,793 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:08:52,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:08:52 BoogieIcfgContainer [2023-11-29 02:08:52,814 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:08:52,814 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:08:52,814 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:08:52,815 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:08:52,815 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:08:25" (3/4) ... [2023-11-29 02:08:52,817 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:08:52,833 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-29 02:08:52,834 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 02:08:52,835 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 02:08:52,836 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:08:52,964 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:08:52,964 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:08:52,964 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:08:52,964 INFO L158 Benchmark]: Toolchain (without parser) took 28385.84ms. Allocated memory was 167.8MB in the beginning and 763.4MB in the end (delta: 595.6MB). Free memory was 133.9MB in the beginning and 551.0MB in the end (delta: -417.1MB). Peak memory consumption was 178.3MB. Max. memory is 16.1GB. [2023-11-29 02:08:52,965 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 111.1MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:08:52,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.00ms. Allocated memory is still 167.8MB. Free memory was 133.9MB in the beginning and 118.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 02:08:52,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.58ms. Allocated memory is still 167.8MB. Free memory was 118.1MB in the beginning and 115.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:08:52,966 INFO L158 Benchmark]: Boogie Preprocessor took 57.17ms. Allocated memory is still 167.8MB. Free memory was 115.1MB in the beginning and 111.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:08:52,966 INFO L158 Benchmark]: RCFGBuilder took 705.99ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 113.6MB in the end (delta: -1.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 02:08:52,966 INFO L158 Benchmark]: TraceAbstraction took 27062.17ms. Allocated memory was 167.8MB in the beginning and 763.4MB in the end (delta: 595.6MB). Free memory was 112.6MB in the beginning and 561.5MB in the end (delta: -448.9MB). Peak memory consumption was 504.2MB. Max. memory is 16.1GB. [2023-11-29 02:08:52,967 INFO L158 Benchmark]: Witness Printer took 149.68ms. Allocated memory is still 763.4MB. Free memory was 561.5MB in the beginning and 551.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:08:52,969 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 111.1MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.00ms. Allocated memory is still 167.8MB. Free memory was 133.9MB in the beginning and 118.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.58ms. Allocated memory is still 167.8MB. Free memory was 118.1MB in the beginning and 115.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.17ms. Allocated memory is still 167.8MB. Free memory was 115.1MB in the beginning and 111.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 705.99ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 113.6MB in the end (delta: -1.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 27062.17ms. Allocated memory was 167.8MB in the beginning and 763.4MB in the end (delta: 595.6MB). Free memory was 112.6MB in the beginning and 561.5MB in the end (delta: -448.9MB). Peak memory consumption was 504.2MB. Max. memory is 16.1GB. * Witness Printer took 149.68ms. Allocated memory is still 763.4MB. Free memory was 561.5MB in the beginning and 551.0MB in the end (delta: 10.5MB). 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: 680]: 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, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.0s, OverallIterations: 20, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3010 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3010 mSDsluCounter, 9340 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4602 mSDsCounter, 566 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4938 IncrementalHoareTripleChecker+Invalid, 5504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 566 mSolverCounterUnsat, 4738 mSDtfsCounter, 4938 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3841 GetRequests, 3776 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16165occurred in iteration=19, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 20 MinimizatonAttempts, 4803 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 207 NumberOfFragments, 642 HoareAnnotationTreeSize, 1 FomulaSimplifications, 2363 FormulaSimplificationTreeSizeReduction, 6.2s HoareSimplificationTime, 1 FomulaSimplificationsInter, 11606 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 6785 NumberOfCodeBlocks, 6785 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 8455 ConstructedInterpolants, 0 QuantifiedInterpolants, 19097 SizeOfPredicates, 6 NumberOfNonLiveVariables, 3202 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 29 InterpolantComputations, 16 PerfectInterpolantSequences, 37414/38160 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: 111]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (8466 == s__state)) && (2 == blastFlag)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576)) || ((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (blastFlag == 1)) && (s__state <= 8448)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576))) || ((8464 == s__state) && (blastFlag == 0))) || (((((2 == blastFlag) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576)) && ((((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) == ((2 * ag_X) + (2 * ag_Y))) || (((1073741824 + (((ag_X + ag_Y) / 2147483648) * 2147483648)) <= (ag_X + ag_Y)) && ((((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) + 4294967296) == ((2 * ag_X) + (2 * ag_Y)))))) && (s__state <= 8655))) || ((blastFlag == 1) && ((1073741823 < ((ag_X + ag_Y) % 2147483648)) || (((ag_X + ag_Y) % 2147483648) < 4249)))) || ((((3 == blastFlag) && (8640 <= s__s3__tmp__next_state___0)) && (8640 <= s__state)) && !((0 == s__hit)))) || ((2 == blastFlag) && !((0 == s__hit)))) || (((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (s__state == 8656)) && (2 == blastFlag)) && (s__s3__tmp__next_state___0 <= 8576))) || ((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (8640 <= s__state)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((8672 <= s__state) && (blastFlag == 1))) || ((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (s__state <= 8448)) && (8497 <= s__s3__tmp__next_state___0)) && (s__s3__tmp__next_state___0 <= 8576))) || ((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (8544 == s__state))) || (((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (blastFlag == 1)) && (8497 <= s__state)) && (s__state <= 8655))) || (((blastFlag == 1) && (s__state <= 8448)) && (3 == s__s3__tmp__next_state___0))) || ((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (8466 == s__state)) && (blastFlag == 1))) || (((8672 <= s__state) && (3 == blastFlag)) && !((0 == s__hit)))) || ((((s__s3__tmp__next_state___0 <= 8495) && (s__state <= 8496)) && (2 == blastFlag)) && ((((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) == ((2 * ag_X) + (2 * ag_Y))) || (((1073741824 + (((ag_X + ag_Y) / 2147483648) * 2147483648)) <= (ag_X + ag_Y)) && ((((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) + 4294967296) == ((2 * ag_X) + (2 * ag_Y))))))) || (((s__state == 8528) && ((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648)))) && (2 == blastFlag))) || ((((s__s3__tmp__next_state___0 <= 8495) && (2 == blastFlag)) && (s__state <= 8495)) && ((1073741823 < ((ag_X + ag_Y) % 2147483648)) || (((ag_X + ag_Y) % 2147483648) < 4249)))) || ((((3 == blastFlag) && (8640 <= s__s3__tmp__next_state___0)) && (s__state <= 8448)) && !((0 == s__hit)))) || ((((2 * ((ag_X + ag_Y) % 2147483648)) < (s__state + 1)) && (s__state == 8656)) && (blastFlag == 1))) || ((blastFlag == 1) && (((((ag_X + ag_Y) / 2147483648) * 4294967296) + s__state) == ((2 * ag_X) + (2 * ag_Y))))) || ((((8672 <= s__state) && ((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648)))) && (3 == blastFlag)) && (s__s3__tmp__next_state___0 <= 8576))) || ((blastFlag == 1) && !((0 == s__hit)))) || ((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (8560 == s__state))) || ((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (s__state == 8512))) || (((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (2 == blastFlag)) && (8497 <= s__s3__tmp__next_state___0)) && (8497 <= s__state)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((((((((ag_X + ag_Y) % 2147483648) < 4328) || (1073741823 < ((ag_X + ag_Y) % 2147483648))) && (3 == blastFlag)) && (s__state <= 8448)) && (3 == s__s3__tmp__next_state___0)) && (0 == s__hit))) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:08:52,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d214b4b-fcd2-4c2a-baac-e93338bfacff/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE