./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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/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_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI --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 [2023-11-24 21:59:35,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:59:35,701 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 21:59:35,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:59:35,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:59:35,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:59:35,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:59:35,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:59:35,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:59:35,767 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:59:35,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:59:35,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:59:35,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:59:35,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:59:35,772 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:59:35,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:59:35,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:59:35,773 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:59:35,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:59:35,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:59:35,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:59:35,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:59:35,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:59:35,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:59:35,776 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:59:35,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:59:35,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:59:35,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:59:35,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:59:35,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:59:35,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:59:35,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:59:35,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:59:35,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:59:35,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:59:35,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:59:35,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:59:35,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:59:35,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:59:35,783 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:59:35,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:59:35,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:59:35,784 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_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8cfead7c1f307a9ba2676fad86c005fa434c5b4bc168c34fe90a644ea9973b2 [2023-11-24 21:59:36,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:59:36,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:59:36,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:59:36,108 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:59:36,109 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:59:36,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2023-11-24 21:59:39,147 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:59:39,438 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:59:39,438 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2023-11-24 21:59:39,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/data/d97bf94ac/94965b794334485bb513f52fd7d666fd/FLAG19ccdaef9 [2023-11-24 21:59:39,467 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/data/d97bf94ac/94965b794334485bb513f52fd7d666fd [2023-11-24 21:59:39,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:59:39,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:59:39,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:59:39,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:59:39,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:59:39,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:39,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe955b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39, skipping insertion in model container [2023-11-24 21:59:39,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:39,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:59:39,764 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_65268930-e69c-41c2-9330-58f8ca678e45/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2023-11-24 21:59:39,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:59:39,784 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:59:39,864 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_65268930-e69c-41c2-9330-58f8ca678e45/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2023-11-24 21:59:39,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:59:39,887 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:59:39,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39 WrapperNode [2023-11-24 21:59:39,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:59:39,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:59:39,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:59:39,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:59:39,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:39,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:39,973 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 575 [2023-11-24 21:59:39,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:59:39,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:59:39,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:59:39,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:59:39,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:39,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:39,993 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:40,009 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]. [2023-11-24 21:59:40,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:40,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:40,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:40,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:40,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:40,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:40,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:59:40,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:59:40,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:59:40,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:59:40,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (1/1) ... [2023-11-24 21:59:40,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:59:40,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:59:40,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:59:40,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:59:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:59:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:59:40,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:59:40,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:59:40,306 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:59:40,308 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:59:40,338 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:59:40,962 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2023-11-24 21:59:40,963 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2023-11-24 21:59:40,963 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:59:41,026 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:59:41,026 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 21:59:41,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:59:41 BoogieIcfgContainer [2023-11-24 21:59:41,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:59:41,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:59:41,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:59:41,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:59:41,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:59:39" (1/3) ... [2023-11-24 21:59:41,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d91634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:59:41, skipping insertion in model container [2023-11-24 21:59:41,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:59:39" (2/3) ... [2023-11-24 21:59:41,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d91634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:59:41, skipping insertion in model container [2023-11-24 21:59:41,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:59:41" (3/3) ... [2023-11-24 21:59:41,043 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2023-11-24 21:59:41,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:59:41,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:59:41,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:59:41,120 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;@443a9c2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:59:41,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:59:41,126 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) [2023-11-24 21:59:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-24 21:59:41,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:41,143 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] [2023-11-24 21:59:41,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:41,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:41,153 INFO L85 PathProgramCache]: Analyzing trace with hash -885659394, now seen corresponding path program 1 times [2023-11-24 21:59:41,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:41,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941515321] [2023-11-24 21:59:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:41,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:59:41,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941515321] [2023-11-24 21:59:41,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941515321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:41,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:41,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:59:41,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618335688] [2023-11-24 21:59:41,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:41,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:41,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:41,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:41,590 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) [2023-11-24 21:59:41,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:41,836 INFO L93 Difference]: Finished difference Result 262 states and 463 transitions. [2023-11-24 21:59:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:41,839 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 [2023-11-24 21:59:41,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:41,850 INFO L225 Difference]: With dead ends: 262 [2023-11-24 21:59:41,850 INFO L226 Difference]: Without dead ends: 124 [2023-11-24 21:59:41,854 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 [2023-11-24 21:59:41,860 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:59:41,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 302 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:59:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-24 21:59:41,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 121. [2023-11-24 21:59:41,916 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) [2023-11-24 21:59:41,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 181 transitions. [2023-11-24 21:59:41,920 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 181 transitions. Word has length 42 [2023-11-24 21:59:41,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:41,922 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 181 transitions. [2023-11-24 21:59:41,922 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) [2023-11-24 21:59:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 181 transitions. [2023-11-24 21:59:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-24 21:59:41,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:41,929 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] [2023-11-24 21:59:41,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:59:41,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:41,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:41,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1758820122, now seen corresponding path program 1 times [2023-11-24 21:59:41,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:41,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937596080] [2023-11-24 21:59:41,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:41,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:59:42,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:42,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937596080] [2023-11-24 21:59:42,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937596080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:42,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:42,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:42,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807415574] [2023-11-24 21:59:42,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:42,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:42,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:42,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:42,151 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) [2023-11-24 21:59:42,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:42,195 INFO L93 Difference]: Finished difference Result 323 states and 494 transitions. [2023-11-24 21:59:42,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:42,196 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 [2023-11-24 21:59:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:42,199 INFO L225 Difference]: With dead ends: 323 [2023-11-24 21:59:42,199 INFO L226 Difference]: Without dead ends: 219 [2023-11-24 21:59:42,200 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 [2023-11-24 21:59:42,202 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 [2023-11-24 21:59:42,203 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] [2023-11-24 21:59:42,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-24 21:59:42,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-24 21:59:42,225 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) [2023-11-24 21:59:42,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions. [2023-11-24 21:59:42,226 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 57 [2023-11-24 21:59:42,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:42,227 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 330 transitions. [2023-11-24 21:59:42,227 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) [2023-11-24 21:59:42,227 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions. [2023-11-24 21:59:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-24 21:59:42,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:42,231 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] [2023-11-24 21:59:42,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:59:42,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:42,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:42,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1335173400, now seen corresponding path program 1 times [2023-11-24 21:59:42,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:42,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823665441] [2023-11-24 21:59:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:42,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:59:42,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:42,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823665441] [2023-11-24 21:59:42,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823665441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:42,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:42,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:59:42,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376061297] [2023-11-24 21:59:42,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:42,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:42,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:42,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:42,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:42,374 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) [2023-11-24 21:59:42,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:42,423 INFO L93 Difference]: Finished difference Result 423 states and 642 transitions. [2023-11-24 21:59:42,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:42,424 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 [2023-11-24 21:59:42,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:42,430 INFO L225 Difference]: With dead ends: 423 [2023-11-24 21:59:42,431 INFO L226 Difference]: Without dead ends: 221 [2023-11-24 21:59:42,434 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 [2023-11-24 21:59:42,435 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 [2023-11-24 21:59:42,436 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] [2023-11-24 21:59:42,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-24 21:59:42,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2023-11-24 21:59:42,451 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) [2023-11-24 21:59:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 332 transitions. [2023-11-24 21:59:42,452 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 332 transitions. Word has length 57 [2023-11-24 21:59:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:42,453 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 332 transitions. [2023-11-24 21:59:42,453 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) [2023-11-24 21:59:42,453 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 332 transitions. [2023-11-24 21:59:42,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-24 21:59:42,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:42,457 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] [2023-11-24 21:59:42,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 21:59:42,458 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:42,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:42,459 INFO L85 PathProgramCache]: Analyzing trace with hash 808134731, now seen corresponding path program 1 times [2023-11-24 21:59:42,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:42,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011136871] [2023-11-24 21:59:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 21:59:42,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:42,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011136871] [2023-11-24 21:59:42,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011136871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:42,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:42,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:42,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562693945] [2023-11-24 21:59:42,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:42,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:42,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:42,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:42,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:42,545 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) [2023-11-24 21:59:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:42,724 INFO L93 Difference]: Finished difference Result 512 states and 793 transitions. [2023-11-24 21:59:42,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:42,725 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 [2023-11-24 21:59:42,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:42,729 INFO L225 Difference]: With dead ends: 512 [2023-11-24 21:59:42,730 INFO L226 Difference]: Without dead ends: 310 [2023-11-24 21:59:42,734 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 [2023-11-24 21:59:42,743 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 [2023-11-24 21:59:42,744 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] [2023-11-24 21:59:42,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-24 21:59:42,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 302. [2023-11-24 21:59:42,772 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) [2023-11-24 21:59:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 423 transitions. [2023-11-24 21:59:42,783 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 423 transitions. Word has length 77 [2023-11-24 21:59:42,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:42,786 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 423 transitions. [2023-11-24 21:59:42,786 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) [2023-11-24 21:59:42,786 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 423 transitions. [2023-11-24 21:59:42,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-24 21:59:42,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:42,796 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] [2023-11-24 21:59:42,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 21:59:42,797 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:42,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:42,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1231781453, now seen corresponding path program 1 times [2023-11-24 21:59:42,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:42,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607510391] [2023-11-24 21:59:42,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:42,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 21:59:42,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:42,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607510391] [2023-11-24 21:59:42,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607510391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:42,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:42,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:42,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588987215] [2023-11-24 21:59:42,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:42,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:42,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:42,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:42,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:42,951 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) [2023-11-24 21:59:43,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:43,086 INFO L93 Difference]: Finished difference Result 613 states and 867 transitions. [2023-11-24 21:59:43,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:43,087 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 [2023-11-24 21:59:43,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:43,090 INFO L225 Difference]: With dead ends: 613 [2023-11-24 21:59:43,090 INFO L226 Difference]: Without dead ends: 330 [2023-11-24 21:59:43,091 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 [2023-11-24 21:59:43,094 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 [2023-11-24 21:59:43,094 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] [2023-11-24 21:59:43,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-24 21:59:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 324. [2023-11-24 21:59:43,119 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) [2023-11-24 21:59:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 450 transitions. [2023-11-24 21:59:43,122 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 450 transitions. Word has length 77 [2023-11-24 21:59:43,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:43,122 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 450 transitions. [2023-11-24 21:59:43,123 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) [2023-11-24 21:59:43,124 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 450 transitions. [2023-11-24 21:59:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-24 21:59:43,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:43,126 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] [2023-11-24 21:59:43,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 21:59:43,126 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:43,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:43,130 INFO L85 PathProgramCache]: Analyzing trace with hash -382395928, now seen corresponding path program 1 times [2023-11-24 21:59:43,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:43,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417056076] [2023-11-24 21:59:43,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:43,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:43,268 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-24 21:59:43,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:43,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417056076] [2023-11-24 21:59:43,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417056076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:43,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:43,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:43,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179751268] [2023-11-24 21:59:43,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:43,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:43,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:43,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:43,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:43,271 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) [2023-11-24 21:59:43,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:43,411 INFO L93 Difference]: Finished difference Result 701 states and 997 transitions. [2023-11-24 21:59:43,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:43,412 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 [2023-11-24 21:59:43,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:43,415 INFO L225 Difference]: With dead ends: 701 [2023-11-24 21:59:43,415 INFO L226 Difference]: Without dead ends: 396 [2023-11-24 21:59:43,416 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 [2023-11-24 21:59:43,417 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 [2023-11-24 21:59:43,417 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] [2023-11-24 21:59:43,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-24 21:59:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2023-11-24 21:59:43,435 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) [2023-11-24 21:59:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 508 transitions. [2023-11-24 21:59:43,437 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 508 transitions. Word has length 96 [2023-11-24 21:59:43,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:43,438 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 508 transitions. [2023-11-24 21:59:43,438 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) [2023-11-24 21:59:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 508 transitions. [2023-11-24 21:59:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-24 21:59:43,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:43,445 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] [2023-11-24 21:59:43,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 21:59:43,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:43,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:43,446 INFO L85 PathProgramCache]: Analyzing trace with hash -376941569, now seen corresponding path program 1 times [2023-11-24 21:59:43,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:43,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974515018] [2023-11-24 21:59:43,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:43,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-24 21:59:43,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:43,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974515018] [2023-11-24 21:59:43,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974515018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:43,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:43,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:43,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007828036] [2023-11-24 21:59:43,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:43,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:43,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:43,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:43,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:43,585 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) [2023-11-24 21:59:43,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:43,624 INFO L93 Difference]: Finished difference Result 888 states and 1222 transitions. [2023-11-24 21:59:43,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:43,624 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 [2023-11-24 21:59:43,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:43,628 INFO L225 Difference]: With dead ends: 888 [2023-11-24 21:59:43,628 INFO L226 Difference]: Without dead ends: 535 [2023-11-24 21:59:43,629 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 [2023-11-24 21:59:43,630 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 [2023-11-24 21:59:43,630 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] [2023-11-24 21:59:43,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-24 21:59:43,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-11-24 21:59:43,643 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) [2023-11-24 21:59:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 732 transitions. [2023-11-24 21:59:43,645 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 732 transitions. Word has length 116 [2023-11-24 21:59:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:43,646 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 732 transitions. [2023-11-24 21:59:43,646 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) [2023-11-24 21:59:43,646 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 732 transitions. [2023-11-24 21:59:43,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-24 21:59:43,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:43,649 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] [2023-11-24 21:59:43,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 21:59:43,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:43,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:43,650 INFO L85 PathProgramCache]: Analyzing trace with hash -128795075, now seen corresponding path program 1 times [2023-11-24 21:59:43,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:43,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174385427] [2023-11-24 21:59:43,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:43,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 21:59:43,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:43,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174385427] [2023-11-24 21:59:43,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174385427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:43,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:43,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:43,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990394273] [2023-11-24 21:59:43,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:43,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:43,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:43,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:43,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:43,728 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) [2023-11-24 21:59:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:43,770 INFO L93 Difference]: Finished difference Result 1238 states and 1700 transitions. [2023-11-24 21:59:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:43,771 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 [2023-11-24 21:59:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:43,775 INFO L225 Difference]: With dead ends: 1238 [2023-11-24 21:59:43,775 INFO L226 Difference]: Without dead ends: 722 [2023-11-24 21:59:43,776 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 [2023-11-24 21:59:43,777 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 [2023-11-24 21:59:43,777 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] [2023-11-24 21:59:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-24 21:59:43,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2023-11-24 21:59:43,795 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) [2023-11-24 21:59:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 986 transitions. [2023-11-24 21:59:43,799 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 986 transitions. Word has length 116 [2023-11-24 21:59:43,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:43,799 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 986 transitions. [2023-11-24 21:59:43,799 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) [2023-11-24 21:59:43,799 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 986 transitions. [2023-11-24 21:59:43,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-24 21:59:43,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:43,805 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] [2023-11-24 21:59:43,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 21:59:43,806 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:43,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:43,806 INFO L85 PathProgramCache]: Analyzing trace with hash 864017877, now seen corresponding path program 1 times [2023-11-24 21:59:43,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:43,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986166031] [2023-11-24 21:59:43,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:43,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-24 21:59:43,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:43,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986166031] [2023-11-24 21:59:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986166031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:43,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:43,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65483408] [2023-11-24 21:59:43,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:43,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:43,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:43,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:43,907 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) [2023-11-24 21:59:44,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:44,099 INFO L93 Difference]: Finished difference Result 1551 states and 2174 transitions. [2023-11-24 21:59:44,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:44,099 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 [2023-11-24 21:59:44,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:44,105 INFO L225 Difference]: With dead ends: 1551 [2023-11-24 21:59:44,105 INFO L226 Difference]: Without dead ends: 848 [2023-11-24 21:59:44,106 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 [2023-11-24 21:59:44,107 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 [2023-11-24 21:59:44,107 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] [2023-11-24 21:59:44,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2023-11-24 21:59:44,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 842. [2023-11-24 21:59:44,128 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) [2023-11-24 21:59:44,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1121 transitions. [2023-11-24 21:59:44,131 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1121 transitions. Word has length 176 [2023-11-24 21:59:44,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:44,132 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1121 transitions. [2023-11-24 21:59:44,132 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) [2023-11-24 21:59:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1121 transitions. [2023-11-24 21:59:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-24 21:59:44,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:44,136 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] [2023-11-24 21:59:44,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 21:59:44,137 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:44,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:44,138 INFO L85 PathProgramCache]: Analyzing trace with hash -405478866, now seen corresponding path program 1 times [2023-11-24 21:59:44,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:44,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723433869] [2023-11-24 21:59:44,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:44,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:44,250 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-24 21:59:44,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:44,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723433869] [2023-11-24 21:59:44,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723433869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:44,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:44,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:44,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362085762] [2023-11-24 21:59:44,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:44,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:44,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:44,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:44,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:44,253 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) [2023-11-24 21:59:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:44,445 INFO L93 Difference]: Finished difference Result 1833 states and 2519 transitions. [2023-11-24 21:59:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:44,446 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 [2023-11-24 21:59:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:44,451 INFO L225 Difference]: With dead ends: 1833 [2023-11-24 21:59:44,452 INFO L226 Difference]: Without dead ends: 962 [2023-11-24 21:59:44,453 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 [2023-11-24 21:59:44,454 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:59:44,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 258 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:59:44,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-11-24 21:59:44,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2023-11-24 21:59:44,496 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) [2023-11-24 21:59:44,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1261 transitions. [2023-11-24 21:59:44,500 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1261 transitions. Word has length 217 [2023-11-24 21:59:44,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:44,500 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 1261 transitions. [2023-11-24 21:59:44,501 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) [2023-11-24 21:59:44,501 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1261 transitions. [2023-11-24 21:59:44,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-24 21:59:44,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:44,506 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] [2023-11-24 21:59:44,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 21:59:44,506 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:44,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1242759366, now seen corresponding path program 1 times [2023-11-24 21:59:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731584506] [2023-11-24 21:59:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:44,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:44,694 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-24 21:59:44,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:44,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731584506] [2023-11-24 21:59:44,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731584506] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:59:44,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412148274] [2023-11-24 21:59:44,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:44,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:59:44,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:59:44,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:59:44,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 21:59:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:44,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:59:44,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:59:45,062 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-24 21:59:45,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:59:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 410 proven. 15 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-24 21:59:45,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412148274] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:59:45,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 21:59:45,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-24 21:59:45,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992423295] [2023-11-24 21:59:45,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 21:59:45,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:59:45,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:45,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:59:45,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:59:45,158 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) [2023-11-24 21:59:46,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:46,018 INFO L93 Difference]: Finished difference Result 4182 states and 5807 transitions. [2023-11-24 21:59:46,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 21:59:46,019 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 [2023-11-24 21:59:46,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:46,035 INFO L225 Difference]: With dead ends: 4182 [2023-11-24 21:59:46,036 INFO L226 Difference]: Without dead ends: 3239 [2023-11-24 21:59:46,038 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 [2023-11-24 21:59:46,038 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 337 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:59:46,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1162 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 21:59:46,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2023-11-24 21:59:46,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 2375. [2023-11-24 21:59:46,105 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) [2023-11-24 21:59:46,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3125 transitions. [2023-11-24 21:59:46,114 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3125 transitions. Word has length 244 [2023-11-24 21:59:46,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:46,115 INFO L495 AbstractCegarLoop]: Abstraction has 2375 states and 3125 transitions. [2023-11-24 21:59:46,115 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) [2023-11-24 21:59:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3125 transitions. [2023-11-24 21:59:46,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-24 21:59:46,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:46,122 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] [2023-11-24 21:59:46,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 21:59:46,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-24 21:59:46,327 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:46,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:46,328 INFO L85 PathProgramCache]: Analyzing trace with hash 657987716, now seen corresponding path program 1 times [2023-11-24 21:59:46,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:46,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349570503] [2023-11-24 21:59:46,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:46,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:46,440 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2023-11-24 21:59:46,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:46,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349570503] [2023-11-24 21:59:46,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349570503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:46,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:46,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:46,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90308302] [2023-11-24 21:59:46,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:46,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:46,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:46,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:46,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:46,444 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) [2023-11-24 21:59:46,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:46,524 INFO L93 Difference]: Finished difference Result 6595 states and 8751 transitions. [2023-11-24 21:59:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:46,525 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 [2023-11-24 21:59:46,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:46,542 INFO L225 Difference]: With dead ends: 6595 [2023-11-24 21:59:46,542 INFO L226 Difference]: Without dead ends: 3044 [2023-11-24 21:59:46,546 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 [2023-11-24 21:59:46,547 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 [2023-11-24 21:59:46,547 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] [2023-11-24 21:59:46,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2023-11-24 21:59:46,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2944. [2023-11-24 21:59:46,665 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) [2023-11-24 21:59:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 3937 transitions. [2023-11-24 21:59:46,677 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 3937 transitions. Word has length 244 [2023-11-24 21:59:46,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:46,678 INFO L495 AbstractCegarLoop]: Abstraction has 2944 states and 3937 transitions. [2023-11-24 21:59:46,678 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) [2023-11-24 21:59:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 3937 transitions. [2023-11-24 21:59:46,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-24 21:59:46,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:46,685 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] [2023-11-24 21:59:46,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-24 21:59:46,686 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:46,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:46,686 INFO L85 PathProgramCache]: Analyzing trace with hash 557502408, now seen corresponding path program 1 times [2023-11-24 21:59:46,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:46,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168755130] [2023-11-24 21:59:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:46,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:46,793 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-24 21:59:46,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:46,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168755130] [2023-11-24 21:59:46,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168755130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:46,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:46,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:46,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893752170] [2023-11-24 21:59:46,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:46,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:46,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:46,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:46,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:46,795 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) [2023-11-24 21:59:46,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:46,966 INFO L93 Difference]: Finished difference Result 6253 states and 8427 transitions. [2023-11-24 21:59:46,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:46,966 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 [2023-11-24 21:59:46,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:46,983 INFO L225 Difference]: With dead ends: 6253 [2023-11-24 21:59:46,984 INFO L226 Difference]: Without dead ends: 3328 [2023-11-24 21:59:46,988 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 [2023-11-24 21:59:46,989 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 [2023-11-24 21:59:46,989 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] [2023-11-24 21:59:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2023-11-24 21:59:47,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3256. [2023-11-24 21:59:47,069 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) [2023-11-24 21:59:47,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4309 transitions. [2023-11-24 21:59:47,082 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4309 transitions. Word has length 288 [2023-11-24 21:59:47,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:47,083 INFO L495 AbstractCegarLoop]: Abstraction has 3256 states and 4309 transitions. [2023-11-24 21:59:47,083 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) [2023-11-24 21:59:47,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4309 transitions. [2023-11-24 21:59:47,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-11-24 21:59:47,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:47,091 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] [2023-11-24 21:59:47,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-24 21:59:47,092 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:47,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:47,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1731457442, now seen corresponding path program 1 times [2023-11-24 21:59:47,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:47,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484432948] [2023-11-24 21:59:47,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:47,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 592 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2023-11-24 21:59:47,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:47,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484432948] [2023-11-24 21:59:47,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484432948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:47,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:47,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:47,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455521080] [2023-11-24 21:59:47,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:47,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:47,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:47,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:47,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:47,219 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) [2023-11-24 21:59:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:47,384 INFO L93 Difference]: Finished difference Result 6841 states and 9099 transitions. [2023-11-24 21:59:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:47,385 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 [2023-11-24 21:59:47,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:47,403 INFO L225 Difference]: With dead ends: 6841 [2023-11-24 21:59:47,403 INFO L226 Difference]: Without dead ends: 3604 [2023-11-24 21:59:47,407 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 [2023-11-24 21:59:47,408 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 [2023-11-24 21:59:47,408 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] [2023-11-24 21:59:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2023-11-24 21:59:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 2943. [2023-11-24 21:59:47,483 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) [2023-11-24 21:59:47,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2943 states to 2943 states and 3869 transitions. [2023-11-24 21:59:47,494 INFO L78 Accepts]: Start accepts. Automaton has 2943 states and 3869 transitions. Word has length 310 [2023-11-24 21:59:47,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:47,495 INFO L495 AbstractCegarLoop]: Abstraction has 2943 states and 3869 transitions. [2023-11-24 21:59:47,495 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) [2023-11-24 21:59:47,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2943 states and 3869 transitions. [2023-11-24 21:59:47,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-11-24 21:59:47,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:47,503 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] [2023-11-24 21:59:47,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-24 21:59:47,504 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:47,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:47,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1462364412, now seen corresponding path program 1 times [2023-11-24 21:59:47,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:47,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874611694] [2023-11-24 21:59:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:47,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-11-24 21:59:47,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:47,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874611694] [2023-11-24 21:59:47,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874611694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:47,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:47,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:47,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013690986] [2023-11-24 21:59:47,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:47,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:47,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:47,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:47,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:47,673 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) [2023-11-24 21:59:47,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:47,826 INFO L93 Difference]: Finished difference Result 8779 states and 11543 transitions. [2023-11-24 21:59:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:47,827 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 [2023-11-24 21:59:47,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:47,858 INFO L225 Difference]: With dead ends: 8779 [2023-11-24 21:59:47,858 INFO L226 Difference]: Without dead ends: 5855 [2023-11-24 21:59:47,862 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 [2023-11-24 21:59:47,863 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 [2023-11-24 21:59:47,863 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] [2023-11-24 21:59:47,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2023-11-24 21:59:48,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5676. [2023-11-24 21:59:48,039 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) [2023-11-24 21:59:48,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5676 states to 5676 states and 7479 transitions. [2023-11-24 21:59:48,060 INFO L78 Accepts]: Start accepts. Automaton has 5676 states and 7479 transitions. Word has length 341 [2023-11-24 21:59:48,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:48,060 INFO L495 AbstractCegarLoop]: Abstraction has 5676 states and 7479 transitions. [2023-11-24 21:59:48,060 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) [2023-11-24 21:59:48,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5676 states and 7479 transitions. [2023-11-24 21:59:48,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-11-24 21:59:48,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:48,072 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] [2023-11-24 21:59:48,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-24 21:59:48,073 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:48,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:48,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1398457759, now seen corresponding path program 1 times [2023-11-24 21:59:48,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:48,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472371414] [2023-11-24 21:59:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:48,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 826 proven. 25 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2023-11-24 21:59:48,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:48,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472371414] [2023-11-24 21:59:48,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472371414] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:59:48,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535412851] [2023-11-24 21:59:48,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:48,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:59:48,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:59:48,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:59:48,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 21:59:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:48,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:59:48,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:59:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 644 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2023-11-24 21:59:48,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:59:48,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535412851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:48,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 21:59:48,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-24 21:59:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901156965] [2023-11-24 21:59:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:48,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:48,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:48,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:59:48,839 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) [2023-11-24 21:59:48,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:48,935 INFO L93 Difference]: Finished difference Result 6512 states and 8591 transitions. [2023-11-24 21:59:48,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:48,936 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 [2023-11-24 21:59:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:48,961 INFO L225 Difference]: With dead ends: 6512 [2023-11-24 21:59:48,961 INFO L226 Difference]: Without dead ends: 4705 [2023-11-24 21:59:48,965 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 [2023-11-24 21:59:48,965 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 [2023-11-24 21:59:48,966 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] [2023-11-24 21:59:48,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4705 states. [2023-11-24 21:59:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4705 to 3691. [2023-11-24 21:59:49,120 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) [2023-11-24 21:59:49,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 4864 transitions. [2023-11-24 21:59:49,131 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 4864 transitions. Word has length 342 [2023-11-24 21:59:49,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:49,132 INFO L495 AbstractCegarLoop]: Abstraction has 3691 states and 4864 transitions. [2023-11-24 21:59:49,132 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) [2023-11-24 21:59:49,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 4864 transitions. [2023-11-24 21:59:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2023-11-24 21:59:49,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:49,146 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] [2023-11-24 21:59:49,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 21:59:49,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-24 21:59:49,352 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:49,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash 924929642, now seen corresponding path program 1 times [2023-11-24 21:59:49,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:49,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162605585] [2023-11-24 21:59:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-24 21:59:49,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:49,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162605585] [2023-11-24 21:59:49,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162605585] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:59:49,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815297759] [2023-11-24 21:59:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:49,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:59:49,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:59:49,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:59:49,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 21:59:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:49,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:59:49,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:59:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-24 21:59:49,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:59:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1899 backedges. 1185 proven. 25 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2023-11-24 21:59:49,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815297759] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:59:49,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 21:59:49,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-24 21:59:49,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628621658] [2023-11-24 21:59:49,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 21:59:49,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:59:49,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:49,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:59:49,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:59:49,973 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) [2023-11-24 21:59:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:50,575 INFO L93 Difference]: Finished difference Result 9136 states and 12427 transitions. [2023-11-24 21:59:50,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 21:59:50,576 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 [2023-11-24 21:59:50,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:50,588 INFO L225 Difference]: With dead ends: 9136 [2023-11-24 21:59:50,589 INFO L226 Difference]: Without dead ends: 5305 [2023-11-24 21:59:50,594 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 [2023-11-24 21:59:50,595 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 443 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:59:50,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 513 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:59:50,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5305 states. [2023-11-24 21:59:50,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5305 to 4664. [2023-11-24 21:59:50,788 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) [2023-11-24 21:59:50,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4664 states to 4664 states and 6462 transitions. [2023-11-24 21:59:50,806 INFO L78 Accepts]: Start accepts. Automaton has 4664 states and 6462 transitions. Word has length 401 [2023-11-24 21:59:50,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:50,807 INFO L495 AbstractCegarLoop]: Abstraction has 4664 states and 6462 transitions. [2023-11-24 21:59:50,807 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) [2023-11-24 21:59:50,807 INFO L276 IsEmpty]: Start isEmpty. Operand 4664 states and 6462 transitions. [2023-11-24 21:59:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2023-11-24 21:59:50,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:50,829 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] [2023-11-24 21:59:50,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 21:59:51,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-24 21:59:51,035 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:51,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:51,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1391389276, now seen corresponding path program 1 times [2023-11-24 21:59:51,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:51,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005780454] [2023-11-24 21:59:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:51,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:51,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2967 backedges. 1576 proven. 0 refuted. 0 times theorem prover too weak. 1391 trivial. 0 not checked. [2023-11-24 21:59:51,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:51,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005780454] [2023-11-24 21:59:51,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005780454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:59:51,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:59:51,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:59:51,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011230600] [2023-11-24 21:59:51,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:59:51,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:59:51,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:51,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:59:51,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:59:51,321 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) [2023-11-24 21:59:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:51,532 INFO L93 Difference]: Finished difference Result 9412 states and 12997 transitions. [2023-11-24 21:59:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:59:51,533 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 [2023-11-24 21:59:51,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:51,549 INFO L225 Difference]: With dead ends: 9412 [2023-11-24 21:59:51,550 INFO L226 Difference]: Without dead ends: 4767 [2023-11-24 21:59:51,555 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 [2023-11-24 21:59:51,556 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 [2023-11-24 21:59:51,557 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] [2023-11-24 21:59:51,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2023-11-24 21:59:51,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4716. [2023-11-24 21:59:51,713 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) [2023-11-24 21:59:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6401 transitions. [2023-11-24 21:59:51,727 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6401 transitions. Word has length 489 [2023-11-24 21:59:51,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:51,728 INFO L495 AbstractCegarLoop]: Abstraction has 4716 states and 6401 transitions. [2023-11-24 21:59:51,728 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) [2023-11-24 21:59:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6401 transitions. [2023-11-24 21:59:51,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-24 21:59:51,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:51,746 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] [2023-11-24 21:59:51,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-24 21:59:51,747 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:51,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:51,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2120440082, now seen corresponding path program 1 times [2023-11-24 21:59:51,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:51,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825928237] [2023-11-24 21:59:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:51,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1646 proven. 193 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2023-11-24 21:59:52,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825928237] [2023-11-24 21:59:52,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825928237] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:59:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797460439] [2023-11-24 21:59:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:52,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:59:52,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:59:52,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:59:52,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 21:59:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:52,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:59:52,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:59:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1694 proven. 226 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2023-11-24 21:59:53,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:59:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3033 backedges. 1783 proven. 137 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2023-11-24 21:59:55,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797460439] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:59:55,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 21:59:55,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-24 21:59:55,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767381938] [2023-11-24 21:59:55,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 21:59:55,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 21:59:55,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:55,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 21:59:55,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:59:55,293 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) [2023-11-24 21:59:58,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:59:58,263 INFO L93 Difference]: Finished difference Result 22216 states and 29998 transitions. [2023-11-24 21:59:58,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-24 21:59:58,264 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 [2023-11-24 21:59:58,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:59:58,299 INFO L225 Difference]: With dead ends: 22216 [2023-11-24 21:59:58,299 INFO L226 Difference]: Without dead ends: 17339 [2023-11-24 21:59:58,309 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 [2023-11-24 21:59:58,310 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1178 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:59:58,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 1553 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-24 21:59:58,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17339 states. [2023-11-24 21:59:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17339 to 16165. [2023-11-24 21:59:58,847 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) [2023-11-24 21:59:58,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16165 states to 16165 states and 21171 transitions. [2023-11-24 21:59:58,892 INFO L78 Accepts]: Start accepts. Automaton has 16165 states and 21171 transitions. Word has length 493 [2023-11-24 21:59:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:59:58,893 INFO L495 AbstractCegarLoop]: Abstraction has 16165 states and 21171 transitions. [2023-11-24 21:59:58,893 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) [2023-11-24 21:59:58,893 INFO L276 IsEmpty]: Start isEmpty. Operand 16165 states and 21171 transitions. [2023-11-24 21:59:59,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2023-11-24 21:59:59,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:59:59,002 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] [2023-11-24 21:59:59,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 21:59:59,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:59:59,207 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:59:59,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:59:59,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2129564387, now seen corresponding path program 2 times [2023-11-24 21:59:59,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:59:59,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734873032] [2023-11-24 21:59:59,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:59:59,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:59:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:59:59,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-24 21:59:59,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:59:59,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734873032] [2023-11-24 21:59:59,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734873032] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:59:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113454331] [2023-11-24 21:59:59,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:59:59,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:59:59,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:59:59,501 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:59:59,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 21:59:59,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 21:59:59,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:59:59,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:59:59,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:59:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-24 21:59:59,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:59:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3868 backedges. 1249 proven. 15 refuted. 0 times theorem prover too weak. 2604 trivial. 0 not checked. [2023-11-24 21:59:59,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113454331] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:59:59,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 21:59:59,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-24 21:59:59,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927535005] [2023-11-24 21:59:59,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 21:59:59,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:59:59,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:59:59,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:59:59,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:59:59,897 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) [2023-11-24 22:00:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 22:00:00,602 INFO L93 Difference]: Finished difference Result 22128 states and 28837 transitions. [2023-11-24 22:00:00,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:00:00,603 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 [2023-11-24 22:00:00,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 22:00:00,603 INFO L225 Difference]: With dead ends: 22128 [2023-11-24 22:00:00,603 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 22:00:00,620 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 [2023-11-24 22:00:00,621 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 22:00:00,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 728 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 22:00:00,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 22:00:00,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 22:00:00,627 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) [2023-11-24 22:00:00,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 22:00:00,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 561 [2023-11-24 22:00:00,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 22:00:00,628 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 22:00:00,628 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) [2023-11-24 22:00:00,628 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 22:00:00,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:00:00,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 22:00:00,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 22:00:00,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:00:00,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 22:00:08,688 WARN L293 SmtUtils]: Spent 7.84s 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) [2023-11-24 22:00:13,863 WARN L293 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 469 DAG size of output: 109 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-24 22:00:13,869 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 272) no Hoare annotation was computed. [2023-11-24 22:00:13,870 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 608) no Hoare annotation was computed. [2023-11-24 22:00:13,870 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 619) no Hoare annotation was computed. [2023-11-24 22:00:13,870 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 630) no Hoare annotation was computed. [2023-11-24 22:00:13,870 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 186 613) no Hoare annotation was computed. [2023-11-24 22:00:13,870 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 398) no Hoare annotation was computed. [2023-11-24 22:00:13,871 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 338) no Hoare annotation was computed. [2023-11-24 22:00:13,871 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 159 622) no Hoare annotation was computed. [2023-11-24 22:00:13,871 INFO L899 garLoopResultBuilder]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2023-11-24 22:00:13,871 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 538) no Hoare annotation was computed. [2023-11-24 22:00:13,871 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 147 626) no Hoare annotation was computed. [2023-11-24 22:00:13,871 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 571) no Hoare annotation was computed. [2023-11-24 22:00:13,872 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 307) no Hoare annotation was computed. [2023-11-24 22:00:13,872 INFO L899 garLoopResultBuilder]: For program point L303-2(lines 221 599) no Hoare annotation was computed. [2023-11-24 22:00:13,872 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 607) no Hoare annotation was computed. [2023-11-24 22:00:13,872 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 618) no Hoare annotation was computed. [2023-11-24 22:00:13,872 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 629) no Hoare annotation was computed. [2023-11-24 22:00:13,872 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 397) no Hoare annotation was computed. [2023-11-24 22:00:13,872 INFO L899 garLoopResultBuilder]: For program point L370-1(lines 370 397) no Hoare annotation was computed. [2023-11-24 22:00:13,873 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 394) no Hoare annotation was computed. [2023-11-24 22:00:13,873 INFO L899 garLoopResultBuilder]: For program point L669(lines 76 686) no Hoare annotation was computed. [2023-11-24 22:00:13,873 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 606) no Hoare annotation was computed. [2023-11-24 22:00:13,873 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 617) no Hoare annotation was computed. [2023-11-24 22:00:13,873 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 628) no Hoare annotation was computed. [2023-11-24 22:00:13,873 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 437) no Hoare annotation was computed. [2023-11-24 22:00:13,873 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 258) no Hoare annotation was computed. [2023-11-24 22:00:13,874 INFO L899 garLoopResultBuilder]: For program point L241-2(lines 221 599) no Hoare annotation was computed. [2023-11-24 22:00:13,874 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 666) no Hoare annotation was computed. [2023-11-24 22:00:13,874 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 413) no Hoare annotation was computed. [2023-11-24 22:00:13,874 INFO L899 garLoopResultBuilder]: For program point L374(lines 374 393) no Hoare annotation was computed. [2023-11-24 22:00:13,874 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 663) no Hoare annotation was computed. [2023-11-24 22:00:13,874 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 577) no Hoare annotation was computed. [2023-11-24 22:00:13,874 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 544) no Hoare annotation was computed. [2023-11-24 22:00:13,875 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 511) no Hoare annotation was computed. [2023-11-24 22:00:13,875 INFO L899 garLoopResultBuilder]: For program point L573-2(lines 573 577) no Hoare annotation was computed. [2023-11-24 22:00:13,875 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 221 599) no Hoare annotation was computed. [2023-11-24 22:00:13,875 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2023-11-24 22:00:13,875 INFO L899 garLoopResultBuilder]: For program point L375-2(lines 374 391) no Hoare annotation was computed. [2023-11-24 22:00:13,875 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2023-11-24 22:00:13,875 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 605) no Hoare annotation was computed. [2023-11-24 22:00:13,876 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 616) no Hoare annotation was computed. [2023-11-24 22:00:13,876 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 627) no Hoare annotation was computed. [2023-11-24 22:00:13,876 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))))))) [2023-11-24 22:00:13,877 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 677) no Hoare annotation was computed. [2023-11-24 22:00:13,877 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 649) no Hoare annotation was computed. [2023-11-24 22:00:13,877 INFO L899 garLoopResultBuilder]: For program point L673-2(lines 673 677) no Hoare annotation was computed. [2023-11-24 22:00:13,877 INFO L899 garLoopResultBuilder]: For program point L640-2(lines 639 661) no Hoare annotation was computed. [2023-11-24 22:00:13,877 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 479) no Hoare annotation was computed. [2023-11-24 22:00:13,877 INFO L899 garLoopResultBuilder]: For program point L343-1(lines 343 352) no Hoare annotation was computed. [2023-11-24 22:00:13,877 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 129 632) no Hoare annotation was computed. [2023-11-24 22:00:13,878 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 646) no Hoare annotation was computed. [2023-11-24 22:00:13,878 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 604) no Hoare annotation was computed. [2023-11-24 22:00:13,878 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 615) no Hoare annotation was computed. [2023-11-24 22:00:13,878 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 626) no Hoare annotation was computed. [2023-11-24 22:00:13,878 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 637) no Hoare annotation was computed. [2023-11-24 22:00:13,878 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2023-11-24 22:00:13,878 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 491) no Hoare annotation was computed. [2023-11-24 22:00:13,879 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 451) no Hoare annotation was computed. [2023-11-24 22:00:13,879 INFO L899 garLoopResultBuilder]: For program point L381(lines 364 399) no Hoare annotation was computed. [2023-11-24 22:00:13,879 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 254) no Hoare annotation was computed. [2023-11-24 22:00:13,879 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 603) no Hoare annotation was computed. [2023-11-24 22:00:13,879 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 614) no Hoare annotation was computed. [2023-11-24 22:00:13,879 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 204 607) no Hoare annotation was computed. [2023-11-24 22:00:13,879 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 625) no Hoare annotation was computed. [2023-11-24 22:00:13,880 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 636) no Hoare annotation was computed. [2023-11-24 22:00:13,880 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2023-11-24 22:00:13,880 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2023-11-24 22:00:13,880 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2023-11-24 22:00:13,880 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 613) no Hoare annotation was computed. [2023-11-24 22:00:13,880 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 624) no Hoare annotation was computed. [2023-11-24 22:00:13,880 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 635) no Hoare annotation was computed. [2023-11-24 22:00:13,881 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 593) no Hoare annotation was computed. [2023-11-24 22:00:13,881 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2023-11-24 22:00:13,881 INFO L899 garLoopResultBuilder]: For program point L484(lines 484 488) no Hoare annotation was computed. [2023-11-24 22:00:13,881 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2023-11-24 22:00:13,881 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 92) no Hoare annotation was computed. [2023-11-24 22:00:13,881 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 85 93) no Hoare annotation was computed. [2023-11-24 22:00:13,881 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2023-11-24 22:00:13,882 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 328) no Hoare annotation was computed. [2023-11-24 22:00:13,882 INFO L899 garLoopResultBuilder]: For program point L684(lines 76 686) no Hoare annotation was computed. [2023-11-24 22:00:13,882 INFO L899 garLoopResultBuilder]: For program point L651(lines 651 657) no Hoare annotation was computed. [2023-11-24 22:00:13,882 INFO L899 garLoopResultBuilder]: For program point $Ultimate##176(lines 457 469) no Hoare annotation was computed. [2023-11-24 22:00:13,882 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 557) no Hoare annotation was computed. [2023-11-24 22:00:13,882 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 180 615) no Hoare annotation was computed. [2023-11-24 22:00:13,882 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 612) no Hoare annotation was computed. [2023-11-24 22:00:13,882 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 623) no Hoare annotation was computed. [2023-11-24 22:00:13,883 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 634) no Hoare annotation was computed. [2023-11-24 22:00:13,883 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2023-11-24 22:00:13,883 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 22:00:13,883 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 198 609) no Hoare annotation was computed. [2023-11-24 22:00:13,883 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-11-24 22:00:13,883 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 221 599) no Hoare annotation was computed. [2023-11-24 22:00:13,883 INFO L899 garLoopResultBuilder]: For program point L224(lines 117 636) no Hoare annotation was computed. [2023-11-24 22:00:13,884 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 76 686) no Hoare annotation was computed. [2023-11-24 22:00:13,884 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 611) no Hoare annotation was computed. [2023-11-24 22:00:13,884 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 622) no Hoare annotation was computed. [2023-11-24 22:00:13,884 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 633) no Hoare annotation was computed. [2023-11-24 22:00:13,884 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-11-24 22:00:13,884 INFO L899 garLoopResultBuilder]: For program point L523-2(lines 523 527) no Hoare annotation was computed. [2023-11-24 22:00:13,884 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 457 469) no Hoare annotation was computed. [2023-11-24 22:00:13,885 INFO L899 garLoopResultBuilder]: For program point $Ultimate##130(lines 343 352) no Hoare annotation was computed. [2023-11-24 22:00:13,885 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 210 605) no Hoare annotation was computed. [2023-11-24 22:00:13,885 INFO L899 garLoopResultBuilder]: For program point L425(lines 416 436) no Hoare annotation was computed. [2023-11-24 22:00:13,885 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 363) no Hoare annotation was computed. [2023-11-24 22:00:13,885 INFO L899 garLoopResultBuilder]: For program point L359-2(lines 221 599) no Hoare annotation was computed. [2023-11-24 22:00:13,885 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 103) no Hoare annotation was computed. [2023-11-24 22:00:13,885 INFO L899 garLoopResultBuilder]: For program point L95-1(lines 76 686) no Hoare annotation was computed. [2023-11-24 22:00:13,885 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 192 611) no Hoare annotation was computed. [2023-11-24 22:00:13,886 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 22:00:13,886 INFO L899 garLoopResultBuilder]: For program point $Ultimate##158(lines 405 442) no Hoare annotation was computed. [2023-11-24 22:00:13,886 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 610) no Hoare annotation was computed. [2023-11-24 22:00:13,886 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 621) no Hoare annotation was computed. [2023-11-24 22:00:13,886 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 632) no Hoare annotation was computed. [2023-11-24 22:00:13,886 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 100) no Hoare annotation was computed. [2023-11-24 22:00:13,886 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 138 629) no Hoare annotation was computed. [2023-11-24 22:00:13,887 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 465) no Hoare annotation was computed. [2023-11-24 22:00:13,887 INFO L899 garLoopResultBuilder]: For program point $Ultimate##166(lines 416 436) no Hoare annotation was computed. [2023-11-24 22:00:13,887 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 233) no Hoare annotation was computed. [2023-11-24 22:00:13,887 INFO L899 garLoopResultBuilder]: For program point L229-2(lines 221 599) no Hoare annotation was computed. [2023-11-24 22:00:13,887 INFO L899 garLoopResultBuilder]: For program point L428(lines 428 432) no Hoare annotation was computed. [2023-11-24 22:00:13,887 INFO L899 garLoopResultBuilder]: For program point $Ultimate##219(lines 638 666) no Hoare annotation was computed. [2023-11-24 22:00:13,887 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 680) no Hoare annotation was computed. [2023-11-24 22:00:13,888 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 609) no Hoare annotation was computed. [2023-11-24 22:00:13,888 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 620) no Hoare annotation was computed. [2023-11-24 22:00:13,888 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 631) no Hoare annotation was computed. [2023-11-24 22:00:13,888 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 171 618) no Hoare annotation was computed. [2023-11-24 22:00:13,888 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 566) no Hoare annotation was computed. [2023-11-24 22:00:13,888 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 500) no Hoare annotation was computed. [2023-11-24 22:00:13,888 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 280) no Hoare annotation was computed. [2023-11-24 22:00:13,892 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] [2023-11-24 22:00:13,895 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 22:00:13,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 10:00:13 BoogieIcfgContainer [2023-11-24 22:00:13,938 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 22:00:13,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:00:13,940 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:00:13,940 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:00:13,941 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:59:41" (3/4) ... [2023-11-24 22:00:13,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:00:13,981 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-24 22:00:13,982 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-24 22:00:13,984 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:00:13,985 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:00:14,235 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/witness.graphml [2023-11-24 22:00:14,236 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/witness.yml [2023-11-24 22:00:14,236 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:00:14,242 INFO L158 Benchmark]: Toolchain (without parser) took 34765.53ms. Allocated memory was 153.1MB in the beginning and 700.4MB in the end (delta: 547.4MB). Free memory was 116.5MB in the beginning and 290.2MB in the end (delta: -173.7MB). Peak memory consumption was 375.9MB. Max. memory is 16.1GB. [2023-11-24 22:00:14,242 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:00:14,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.28ms. Allocated memory is still 153.1MB. Free memory was 116.1MB in the beginning and 100.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:00:14,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.57ms. Allocated memory is still 153.1MB. Free memory was 100.1MB in the beginning and 97.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:00:14,244 INFO L158 Benchmark]: Boogie Preprocessor took 81.35ms. Allocated memory is still 153.1MB. Free memory was 97.2MB in the beginning and 93.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:00:14,245 INFO L158 Benchmark]: RCFGBuilder took 970.98ms. Allocated memory is still 153.1MB. Free memory was 93.8MB in the beginning and 105.9MB in the end (delta: -12.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2023-11-24 22:00:14,246 INFO L158 Benchmark]: TraceAbstraction took 32908.90ms. Allocated memory was 153.1MB in the beginning and 700.4MB in the end (delta: 547.4MB). Free memory was 105.2MB in the beginning and 299.7MB in the end (delta: -194.5MB). Peak memory consumption was 458.5MB. Max. memory is 16.1GB. [2023-11-24 22:00:14,246 INFO L158 Benchmark]: Witness Printer took 297.11ms. Allocated memory is still 700.4MB. Free memory was 299.7MB in the beginning and 290.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:00:14,255 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.28ms. Allocated memory is still 153.1MB. Free memory was 116.1MB in the beginning and 100.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.57ms. Allocated memory is still 153.1MB. Free memory was 100.1MB in the beginning and 97.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.35ms. Allocated memory is still 153.1MB. Free memory was 97.2MB in the beginning and 93.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 970.98ms. Allocated memory is still 153.1MB. Free memory was 93.8MB in the beginning and 105.9MB in the end (delta: -12.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * TraceAbstraction took 32908.90ms. Allocated memory was 153.1MB in the beginning and 700.4MB in the end (delta: 547.4MB). Free memory was 105.2MB in the beginning and 299.7MB in the end (delta: -194.5MB). Peak memory consumption was 458.5MB. Max. memory is 16.1GB. * Witness Printer took 297.11ms. Allocated memory is still 700.4MB. Free memory was 299.7MB in the beginning and 290.2MB in the end (delta: 9.4MB). 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: 32.8s, OverallIterations: 20, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3010 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3010 mSDsluCounter, 9340 SdHoareTripleChecker+Invalid, 4.2s 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, 0.6s 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: 2.0s AutomataMinimizationTime, 20 MinimizatonAttempts, 4803 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 207 NumberOfFragments, 642 HoareAnnotationTreeSize, 1 FomulaSimplifications, 2363 FormulaSimplificationTreeSizeReduction, 7.8s HoareSimplificationTime, 1 FomulaSimplificationsInter, 11606 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.8s 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! [2023-11-24 22:00:14,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65268930-e69c-41c2-9330-58f8ca678e45/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE