./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/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_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/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_54ab704f-04ec-4ed6-9c4b-486a66c3d790/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 a3777e2ab1819fd82e3658352e2b99c7da6626d046ae65288a9623558224827f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:28:32,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:28:32,744 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 21:28:32,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:28:32,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:28:32,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:28:32,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:28:32,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:28:32,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:28:32,779 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:28:32,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:28:32,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:28:32,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:28:32,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:28:32,782 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:28:32,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:28:32,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:28:32,784 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:28:32,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:28:32,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:28:32,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:28:32,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:28:32,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:28:32,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:28:32,789 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:28:32,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:28:32,790 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:28:32,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:28:32,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:28:32,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:28:32,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:28:32,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:28:32,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:28:32,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:28:32,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:28:32,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:28:32,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:28:32,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:28:32,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:28:32,796 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:28:32,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:28:32,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:28:32,797 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_54ab704f-04ec-4ed6-9c4b-486a66c3d790/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3777e2ab1819fd82e3658352e2b99c7da6626d046ae65288a9623558224827f [2023-11-24 21:28:33,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:28:33,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:28:33,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:28:33,072 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:28:33,073 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:28:33,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c [2023-11-24 21:28:36,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:28:36,518 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:28:36,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c [2023-11-24 21:28:36,533 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/data/3628553ea/0e62387f51374c938b91304d9fd1e3a7/FLAG417542f5e [2023-11-24 21:28:36,549 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/data/3628553ea/0e62387f51374c938b91304d9fd1e3a7 [2023-11-24 21:28:36,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:28:36,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:28:36,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:28:36,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:28:36,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:28:36,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:36,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37128b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36, skipping insertion in model container [2023-11-24 21:28:36,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:36,610 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:28:36,840 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2023-11-24 21:28:36,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:28:36,872 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:28:36,931 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_54ab704f-04ec-4ed6-9c4b-486a66c3d790/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2023-11-24 21:28:36,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:28:36,950 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:28:36,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36 WrapperNode [2023-11-24 21:28:36,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:28:36,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:28:36,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:28:36,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:28:36,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:36,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,079 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 655 [2023-11-24 21:28:37,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:28:37,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:28:37,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:28:37,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:28:37,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,119 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 21:28:37,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:28:37,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:28:37,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:28:37,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:28:37,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (1/1) ... [2023-11-24 21:28:37,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:28:37,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:28:37,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:28:37,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:28:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:28:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:28:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:28:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:28:37,389 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:28:37,391 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:28:37,411 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:28:38,037 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume !false; [2023-11-24 21:28:38,038 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##102: assume false; [2023-11-24 21:28:38,039 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:28:38,109 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:28:38,109 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 21:28:38,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:28:38 BoogieIcfgContainer [2023-11-24 21:28:38,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:28:38,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:28:38,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:28:38,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:28:38,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:28:36" (1/3) ... [2023-11-24 21:28:38,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dc5399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:28:38, skipping insertion in model container [2023-11-24 21:28:38,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:36" (2/3) ... [2023-11-24 21:28:38,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dc5399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:28:38, skipping insertion in model container [2023-11-24 21:28:38,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:28:38" (3/3) ... [2023-11-24 21:28:38,138 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2023-11-24 21:28:38,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:28:38,159 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:28:38,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:28:38,245 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;@39276fe6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:28:38,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:28:38,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.8175675675675675) internal successors, (269), 149 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 21:28:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 21:28:38,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:38,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:38,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:38,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:38,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1415729344, now seen corresponding path program 1 times [2023-11-24 21:28:38,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:38,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750951406] [2023-11-24 21:28:38,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:38,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:38,734 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 21:28:38,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:38,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750951406] [2023-11-24 21:28:38,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750951406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:38,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:38,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:28:38,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248769219] [2023-11-24 21:28:38,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:38,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:38,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:38,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:38,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:38,806 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.8175675675675675) internal successors, (269), 149 states have internal predecessors, (269), 0 states have call successors, (0), 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 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 21:28:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:39,073 INFO L93 Difference]: Finished difference Result 313 states and 562 transitions. [2023-11-24 21:28:39,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:39,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2023-11-24 21:28:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:39,089 INFO L225 Difference]: With dead ends: 313 [2023-11-24 21:28:39,090 INFO L226 Difference]: Without dead ends: 161 [2023-11-24 21:28:39,093 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 21:28:39,097 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 35 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:39,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 409 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:28:39,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-24 21:28:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2023-11-24 21:28:39,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.605095541401274) internal successors, (252), 157 states have internal predecessors, (252), 0 states have call successors, (0), 0 states 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 21:28:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 252 transitions. [2023-11-24 21:28:39,145 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 252 transitions. Word has length 43 [2023-11-24 21:28:39,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:39,146 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 252 transitions. [2023-11-24 21:28:39,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 21:28:39,147 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 252 transitions. [2023-11-24 21:28:39,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-24 21:28:39,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:39,150 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, 1] [2023-11-24 21:28:39,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:28:39,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:39,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1586399182, now seen corresponding path program 1 times [2023-11-24 21:28:39,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:39,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914958386] [2023-11-24 21:28:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:39,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:39,272 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 21:28:39,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914958386] [2023-11-24 21:28:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914958386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:39,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:39,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:39,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080734696] [2023-11-24 21:28:39,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:39,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:39,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:39,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:39,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:39,277 INFO L87 Difference]: Start difference. First operand 158 states and 252 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:39,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:39,452 INFO L93 Difference]: Finished difference Result 329 states and 528 transitions. [2023-11-24 21:28:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:39,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-11-24 21:28:39,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:39,456 INFO L225 Difference]: With dead ends: 329 [2023-11-24 21:28:39,456 INFO L226 Difference]: Without dead ends: 182 [2023-11-24 21:28:39,457 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 21:28:39,459 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 14 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:39,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 355 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:39,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-24 21:28:39,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2023-11-24 21:28:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.5649717514124293) internal successors, (277), 177 states have internal predecessors, (277), 0 states have call successors, (0), 0 states 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 21:28:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 277 transitions. [2023-11-24 21:28:39,476 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 277 transitions. Word has length 58 [2023-11-24 21:28:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:39,476 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 277 transitions. [2023-11-24 21:28:39,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 277 transitions. [2023-11-24 21:28:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 21:28:39,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:39,481 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, 1] [2023-11-24 21:28:39,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:28:39,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:39,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:39,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1249860790, now seen corresponding path program 1 times [2023-11-24 21:28:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:39,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923758073] [2023-11-24 21:28:39,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:39,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:39,641 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 21:28:39,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:39,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923758073] [2023-11-24 21:28:39,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923758073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:39,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:39,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:39,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676134653] [2023-11-24 21:28:39,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:39,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:39,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:39,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:39,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:39,653 INFO L87 Difference]: Start difference. First operand 178 states and 277 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 21:28:39,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:39,861 INFO L93 Difference]: Finished difference Result 390 states and 617 transitions. [2023-11-24 21:28:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:39,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 78 [2023-11-24 21:28:39,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:39,866 INFO L225 Difference]: With dead ends: 390 [2023-11-24 21:28:39,867 INFO L226 Difference]: Without dead ends: 223 [2023-11-24 21:28:39,873 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 21:28:39,879 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:39,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 352 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:28:39,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-24 21:28:39,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2023-11-24 21:28:39,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.481651376146789) internal successors, (323), 218 states have internal predecessors, (323), 0 states have call successors, (0), 0 states 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 21:28:39,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2023-11-24 21:28:39,904 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 78 [2023-11-24 21:28:39,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:39,910 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2023-11-24 21:28:39,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 21:28:39,911 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2023-11-24 21:28:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 21:28:39,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:39,915 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, 1] [2023-11-24 21:28:39,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 21:28:39,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:39,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:39,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1673507512, now seen corresponding path program 1 times [2023-11-24 21:28:39,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:39,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388172054] [2023-11-24 21:28:39,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:39,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:40,009 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 21:28:40,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:40,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388172054] [2023-11-24 21:28:40,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388172054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:40,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:40,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:40,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286046562] [2023-11-24 21:28:40,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:40,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:40,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:40,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:40,013 INFO L87 Difference]: Start difference. First operand 219 states and 323 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 21:28:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:40,162 INFO L93 Difference]: Finished difference Result 454 states and 676 transitions. [2023-11-24 21:28:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:40,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 78 [2023-11-24 21:28:40,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:40,165 INFO L225 Difference]: With dead ends: 454 [2023-11-24 21:28:40,165 INFO L226 Difference]: Without dead ends: 246 [2023-11-24 21:28:40,183 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 21:28:40,185 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 17 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:40,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 371 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:40,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-24 21:28:40,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 241. [2023-11-24 21:28:40,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.4583333333333333) internal successors, (350), 240 states have internal predecessors, (350), 0 states have call successors, (0), 0 states 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 21:28:40,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 350 transitions. [2023-11-24 21:28:40,199 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 350 transitions. Word has length 78 [2023-11-24 21:28:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:40,199 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 350 transitions. [2023-11-24 21:28:40,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 21:28:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 350 transitions. [2023-11-24 21:28:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-24 21:28:40,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:40,204 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, 1, 1] [2023-11-24 21:28:40,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 21:28:40,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:40,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:40,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1699464270, now seen corresponding path program 1 times [2023-11-24 21:28:40,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:40,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578284606] [2023-11-24 21:28:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:40,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:40,289 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 21:28:40,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:40,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578284606] [2023-11-24 21:28:40,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578284606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:40,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:40,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:40,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056396151] [2023-11-24 21:28:40,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:40,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:40,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:40,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:40,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:40,293 INFO L87 Difference]: Start difference. First operand 241 states and 350 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:40,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:40,447 INFO L93 Difference]: Finished difference Result 515 states and 762 transitions. [2023-11-24 21:28:40,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:40,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-11-24 21:28:40,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:40,452 INFO L225 Difference]: With dead ends: 515 [2023-11-24 21:28:40,452 INFO L226 Difference]: Without dead ends: 285 [2023-11-24 21:28:40,452 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 21:28:40,457 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 45 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:40,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 370 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-24 21:28:40,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 265. [2023-11-24 21:28:40,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.4356060606060606) internal successors, (379), 264 states have internal predecessors, (379), 0 states have call successors, (0), 0 states 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 21:28:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 379 transitions. [2023-11-24 21:28:40,480 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 379 transitions. Word has length 98 [2023-11-24 21:28:40,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:40,484 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 379 transitions. [2023-11-24 21:28:40,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 379 transitions. [2023-11-24 21:28:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-24 21:28:40,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:40,487 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, 1] [2023-11-24 21:28:40,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 21:28:40,488 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:40,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:40,488 INFO L85 PathProgramCache]: Analyzing trace with hash 967987460, now seen corresponding path program 1 times [2023-11-24 21:28:40,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:40,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325195651] [2023-11-24 21:28:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:40,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:40,726 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 21:28:40,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:40,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325195651] [2023-11-24 21:28:40,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325195651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:40,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:40,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:40,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390329609] [2023-11-24 21:28:40,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:40,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:40,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:40,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:40,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:40,730 INFO L87 Difference]: Start difference. First operand 265 states and 379 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:40,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:40,775 INFO L93 Difference]: Finished difference Result 767 states and 1093 transitions. [2023-11-24 21:28:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:40,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-11-24 21:28:40,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:40,783 INFO L225 Difference]: With dead ends: 767 [2023-11-24 21:28:40,783 INFO L226 Difference]: Without dead ends: 513 [2023-11-24 21:28:40,784 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 21:28:40,788 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 160 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:40,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 535 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:28:40,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-11-24 21:28:40,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2023-11-24 21:28:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 512 states have (on average 1.419921875) internal successors, (727), 512 states have internal predecessors, (727), 0 states have call successors, (0), 0 states 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 21:28:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 727 transitions. [2023-11-24 21:28:40,811 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 727 transitions. Word has length 117 [2023-11-24 21:28:40,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:40,811 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 727 transitions. [2023-11-24 21:28:40,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:40,811 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 727 transitions. [2023-11-24 21:28:40,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-24 21:28:40,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:40,814 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, 1] [2023-11-24 21:28:40,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 21:28:40,815 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:40,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:40,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1216133954, now seen corresponding path program 1 times [2023-11-24 21:28:40,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:40,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771921249] [2023-11-24 21:28:40,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:40,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:40,910 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 21:28:40,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:40,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771921249] [2023-11-24 21:28:40,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771921249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:40,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:40,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:40,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014464285] [2023-11-24 21:28:40,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:40,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:40,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:40,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:40,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:40,914 INFO L87 Difference]: Start difference. First operand 513 states and 727 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 21:28:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:40,969 INFO L93 Difference]: Finished difference Result 1265 states and 1792 transitions. [2023-11-24 21:28:40,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:40,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 117 [2023-11-24 21:28:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:40,974 INFO L225 Difference]: With dead ends: 1265 [2023-11-24 21:28:40,975 INFO L226 Difference]: Without dead ends: 763 [2023-11-24 21:28:40,975 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 21:28:40,977 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 162 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:40,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 557 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:28:40,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-11-24 21:28:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763. [2023-11-24 21:28:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 762 states have (on average 1.4146981627296589) internal successors, (1078), 762 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states 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 21:28:41,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1078 transitions. [2023-11-24 21:28:41,005 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1078 transitions. Word has length 117 [2023-11-24 21:28:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:41,006 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 1078 transitions. [2023-11-24 21:28:41,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 21:28:41,006 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1078 transitions. [2023-11-24 21:28:41,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-24 21:28:41,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:41,009 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, 1] [2023-11-24 21:28:41,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 21:28:41,009 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:41,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:41,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1512075392, now seen corresponding path program 1 times [2023-11-24 21:28:41,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:41,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213696160] [2023-11-24 21:28:41,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:41,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-24 21:28:41,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:41,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213696160] [2023-11-24 21:28:41,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213696160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:41,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:41,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:41,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106818003] [2023-11-24 21:28:41,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:41,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:41,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:41,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:41,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:41,077 INFO L87 Difference]: Start difference. First operand 763 states and 1078 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 21:28:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:41,117 INFO L93 Difference]: Finished difference Result 1538 states and 2166 transitions. [2023-11-24 21:28:41,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:41,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 117 [2023-11-24 21:28:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:41,122 INFO L225 Difference]: With dead ends: 1538 [2023-11-24 21:28:41,122 INFO L226 Difference]: Without dead ends: 786 [2023-11-24 21:28:41,123 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 21:28:41,125 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 10 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:41,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 445 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:28:41,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-11-24 21:28:41,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2023-11-24 21:28:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.4089171974522292) internal successors, (1106), 785 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states 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 21:28:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1106 transitions. [2023-11-24 21:28:41,149 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1106 transitions. Word has length 117 [2023-11-24 21:28:41,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:41,150 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1106 transitions. [2023-11-24 21:28:41,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 21:28:41,150 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1106 transitions. [2023-11-24 21:28:41,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-24 21:28:41,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:41,153 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, 1] [2023-11-24 21:28:41,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 21:28:41,153 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:41,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:41,154 INFO L85 PathProgramCache]: Analyzing trace with hash 385421374, now seen corresponding path program 1 times [2023-11-24 21:28:41,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:41,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771677378] [2023-11-24 21:28:41,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:41,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-24 21:28:41,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:41,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771677378] [2023-11-24 21:28:41,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771677378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:41,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:41,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:28:41,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507611596] [2023-11-24 21:28:41,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:41,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:41,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:41,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:41,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:41,212 INFO L87 Difference]: Start difference. First operand 786 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 21:28:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:41,252 INFO L93 Difference]: Finished difference Result 1573 states and 2206 transitions. [2023-11-24 21:28:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:41,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 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 117 [2023-11-24 21:28:41,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:41,257 INFO L225 Difference]: With dead ends: 1573 [2023-11-24 21:28:41,257 INFO L226 Difference]: Without dead ends: 798 [2023-11-24 21:28:41,260 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 21:28:41,262 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 13 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:41,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 419 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:28:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2023-11-24 21:28:41,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2023-11-24 21:28:41,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4027603513174405) internal successors, (1118), 797 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states 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 21:28:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1118 transitions. [2023-11-24 21:28:41,284 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1118 transitions. Word has length 117 [2023-11-24 21:28:41,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:41,284 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1118 transitions. [2023-11-24 21:28:41,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 21:28:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1118 transitions. [2023-11-24 21:28:41,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-24 21:28:41,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:41,288 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-24 21:28:41,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 21:28:41,288 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:41,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:41,298 INFO L85 PathProgramCache]: Analyzing trace with hash -821751423, now seen corresponding path program 1 times [2023-11-24 21:28:41,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:41,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190624252] [2023-11-24 21:28:41,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:41,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-24 21:28:41,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:41,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190624252] [2023-11-24 21:28:41,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190624252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:41,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:41,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:41,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206099033] [2023-11-24 21:28:41,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:41,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:41,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:41,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:41,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:41,403 INFO L87 Difference]: Start difference. First operand 798 states and 1118 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 21:28:41,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:41,579 INFO L93 Difference]: Finished difference Result 1684 states and 2401 transitions. [2023-11-24 21:28:41,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:41,580 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 154 [2023-11-24 21:28:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:41,586 INFO L225 Difference]: With dead ends: 1684 [2023-11-24 21:28:41,586 INFO L226 Difference]: Without dead ends: 909 [2023-11-24 21:28:41,587 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 21:28:41,588 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 35 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:41,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 355 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:41,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2023-11-24 21:28:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 878. [2023-11-24 21:28:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 1.3842645381984036) internal successors, (1214), 877 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states 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 21:28:41,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1214 transitions. [2023-11-24 21:28:41,617 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1214 transitions. Word has length 154 [2023-11-24 21:28:41,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:41,618 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1214 transitions. [2023-11-24 21:28:41,618 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 21:28:41,618 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1214 transitions. [2023-11-24 21:28:41,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-24 21:28:41,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:41,622 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2023-11-24 21:28:41,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 21:28:41,622 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:41,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:41,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1792277032, now seen corresponding path program 1 times [2023-11-24 21:28:41,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:41,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096405417] [2023-11-24 21:28:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:41,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-24 21:28:41,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:41,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096405417] [2023-11-24 21:28:41,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096405417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:41,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:41,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:41,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340222730] [2023-11-24 21:28:41,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:41,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:41,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:41,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:41,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:41,721 INFO L87 Difference]: Start difference. First operand 878 states and 1214 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:41,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:41,905 INFO L93 Difference]: Finished difference Result 1900 states and 2688 transitions. [2023-11-24 21:28:41,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:41,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2023-11-24 21:28:41,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:41,912 INFO L225 Difference]: With dead ends: 1900 [2023-11-24 21:28:41,912 INFO L226 Difference]: Without dead ends: 1042 [2023-11-24 21:28:41,913 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 21:28:41,914 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 197 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:41,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 186 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:28:41,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-11-24 21:28:41,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1025. [2023-11-24 21:28:41,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1024 states have (on average 1.4287109375) internal successors, (1463), 1024 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 21:28:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1463 transitions. [2023-11-24 21:28:41,947 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1463 transitions. Word has length 165 [2023-11-24 21:28:41,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:41,947 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1463 transitions. [2023-11-24 21:28:41,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:41,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1463 transitions. [2023-11-24 21:28:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-24 21:28:41,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:41,959 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:41,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-24 21:28:41,959 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:41,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:41,960 INFO L85 PathProgramCache]: Analyzing trace with hash -441903689, now seen corresponding path program 1 times [2023-11-24 21:28:41,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:41,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880288485] [2023-11-24 21:28:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:41,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-24 21:28:42,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:42,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880288485] [2023-11-24 21:28:42,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880288485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:42,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:42,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:42,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365417688] [2023-11-24 21:28:42,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:42,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:42,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:42,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:42,052 INFO L87 Difference]: Start difference. First operand 1025 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 21:28:42,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:42,203 INFO L93 Difference]: Finished difference Result 2117 states and 3057 transitions. [2023-11-24 21:28:42,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:42,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 196 [2023-11-24 21:28:42,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:42,211 INFO L225 Difference]: With dead ends: 2117 [2023-11-24 21:28:42,211 INFO L226 Difference]: Without dead ends: 1115 [2023-11-24 21:28:42,215 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 21:28:42,216 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 13 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:42,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 365 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:42,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-11-24 21:28:42,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2023-11-24 21:28:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.40754039497307) internal successors, (1568), 1114 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states 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 21:28:42,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1568 transitions. [2023-11-24 21:28:42,247 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1568 transitions. Word has length 196 [2023-11-24 21:28:42,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:42,248 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1568 transitions. [2023-11-24 21:28:42,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 21:28:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1568 transitions. [2023-11-24 21:28:42,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-24 21:28:42,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:42,253 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:42,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-24 21:28:42,253 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:42,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1642226952, now seen corresponding path program 1 times [2023-11-24 21:28:42,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:42,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472592715] [2023-11-24 21:28:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-11-24 21:28:42,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:42,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472592715] [2023-11-24 21:28:42,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472592715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:42,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:42,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676963685] [2023-11-24 21:28:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:42,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:42,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:42,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:42,414 INFO L87 Difference]: Start difference. First operand 1115 states and 1568 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:42,583 INFO L93 Difference]: Finished difference Result 2330 states and 3330 transitions. [2023-11-24 21:28:42,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:42,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2023-11-24 21:28:42,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:42,590 INFO L225 Difference]: With dead ends: 2330 [2023-11-24 21:28:42,591 INFO L226 Difference]: Without dead ends: 1113 [2023-11-24 21:28:42,592 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 21:28:42,593 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 9 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:42,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 371 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:42,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-11-24 21:28:42,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-11-24 21:28:42,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 1.4010791366906474) internal successors, (1558), 1112 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states 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 21:28:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1558 transitions. [2023-11-24 21:28:42,624 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1558 transitions. Word has length 223 [2023-11-24 21:28:42,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:42,625 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1558 transitions. [2023-11-24 21:28:42,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1558 transitions. [2023-11-24 21:28:42,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-24 21:28:42,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:42,630 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:42,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-24 21:28:42,630 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:42,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:42,630 INFO L85 PathProgramCache]: Analyzing trace with hash 180266606, now seen corresponding path program 1 times [2023-11-24 21:28:42,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:42,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600444952] [2023-11-24 21:28:42,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:42,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-11-24 21:28:42,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:42,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600444952] [2023-11-24 21:28:42,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600444952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:42,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:42,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:42,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124844525] [2023-11-24 21:28:42,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:42,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:42,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:42,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:42,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:42,757 INFO L87 Difference]: Start difference. First operand 1113 states and 1558 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:42,809 INFO L93 Difference]: Finished difference Result 3180 states and 4479 transitions. [2023-11-24 21:28:42,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:42,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2023-11-24 21:28:42,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:42,818 INFO L225 Difference]: With dead ends: 3180 [2023-11-24 21:28:42,818 INFO L226 Difference]: Without dead ends: 1415 [2023-11-24 21:28:42,820 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 21:28:42,821 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 148 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:42,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 606 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:28:42,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2023-11-24 21:28:42,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1413. [2023-11-24 21:28:42,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1412 states have (on average 1.405099150141643) internal successors, (1984), 1412 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states 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 21:28:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1984 transitions. [2023-11-24 21:28:42,862 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1984 transitions. Word has length 262 [2023-11-24 21:28:42,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:42,862 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 1984 transitions. [2023-11-24 21:28:42,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:28:42,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1984 transitions. [2023-11-24 21:28:42,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-11-24 21:28:42,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:42,868 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:42,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-24 21:28:42,868 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:42,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:42,869 INFO L85 PathProgramCache]: Analyzing trace with hash -607280505, now seen corresponding path program 1 times [2023-11-24 21:28:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:42,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538693813] [2023-11-24 21:28:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:42,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-11-24 21:28:43,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:43,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538693813] [2023-11-24 21:28:43,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538693813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:43,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:43,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:43,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480261760] [2023-11-24 21:28:43,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:43,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:43,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:43,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:43,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:43,015 INFO L87 Difference]: Start difference. First operand 1413 states and 1984 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 21:28:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:43,158 INFO L93 Difference]: Finished difference Result 2959 states and 4213 transitions. [2023-11-24 21:28:43,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:43,159 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 308 [2023-11-24 21:28:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:43,168 INFO L225 Difference]: With dead ends: 2959 [2023-11-24 21:28:43,168 INFO L226 Difference]: Without dead ends: 1569 [2023-11-24 21:28:43,171 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 21:28:43,172 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 30 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:43,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 367 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2023-11-24 21:28:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1517. [2023-11-24 21:28:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 1.3905013192612137) internal successors, (2108), 1516 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states 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 21:28:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2108 transitions. [2023-11-24 21:28:43,226 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2108 transitions. Word has length 308 [2023-11-24 21:28:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:43,226 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2108 transitions. [2023-11-24 21:28:43,226 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 21:28:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2108 transitions. [2023-11-24 21:28:43,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-11-24 21:28:43,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:43,233 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:43,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-24 21:28:43,233 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:43,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:43,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1677575352, now seen corresponding path program 1 times [2023-11-24 21:28:43,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:43,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574103006] [2023-11-24 21:28:43,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:43,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2023-11-24 21:28:43,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:43,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574103006] [2023-11-24 21:28:43,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574103006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:43,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212591740] [2023-11-24 21:28:43,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:43,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:43,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:43,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:43,363 INFO L87 Difference]: Start difference. First operand 1517 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 21:28:43,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:43,515 INFO L93 Difference]: Finished difference Result 3131 states and 4389 transitions. [2023-11-24 21:28:43,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:43,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 330 [2023-11-24 21:28:43,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:43,524 INFO L225 Difference]: With dead ends: 3131 [2023-11-24 21:28:43,525 INFO L226 Difference]: Without dead ends: 1637 [2023-11-24 21:28:43,527 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 21:28:43,527 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:43,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 367 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:43,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2023-11-24 21:28:43,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1629. [2023-11-24 21:28:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.375921375921376) internal successors, (2240), 1628 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states 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 21:28:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2240 transitions. [2023-11-24 21:28:43,604 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2240 transitions. Word has length 330 [2023-11-24 21:28:43,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:43,605 INFO L495 AbstractCegarLoop]: Abstraction has 1629 states and 2240 transitions. [2023-11-24 21:28:43,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 21:28:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2240 transitions. [2023-11-24 21:28:43,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-11-24 21:28:43,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:43,612 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:43,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-24 21:28:43,612 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:43,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1748390064, now seen corresponding path program 1 times [2023-11-24 21:28:43,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:43,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530049667] [2023-11-24 21:28:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:43,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-11-24 21:28:43,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:43,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530049667] [2023-11-24 21:28:43,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530049667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:28:43,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127915222] [2023-11-24 21:28:43,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:43,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:28:43,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:28:43,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:28:43,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 21:28:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:44,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:28:44,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:28:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-11-24 21:28:44,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:28:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-11-24 21:28:44,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127915222] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:28:44,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 21:28:44,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-24 21:28:44,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805722341] [2023-11-24 21:28:44,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 21:28:44,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:28:44,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:44,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:28:44,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:28:44,462 INFO L87 Difference]: Start difference. First operand 1629 states and 2240 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states 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 21:28:45,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:45,014 INFO L93 Difference]: Finished difference Result 3978 states and 5542 transitions. [2023-11-24 21:28:45,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 21:28:45,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 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 362 [2023-11-24 21:28:45,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:45,027 INFO L225 Difference]: With dead ends: 3978 [2023-11-24 21:28:45,027 INFO L226 Difference]: Without dead ends: 2253 [2023-11-24 21:28:45,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 726 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-24 21:28:45,030 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 883 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:45,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 531 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 21:28:45,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2023-11-24 21:28:45,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 1641. [2023-11-24 21:28:45,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1640 states have (on average 1.3609756097560977) internal successors, (2232), 1640 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states 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 21:28:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2232 transitions. [2023-11-24 21:28:45,084 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2232 transitions. Word has length 362 [2023-11-24 21:28:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:45,084 INFO L495 AbstractCegarLoop]: Abstraction has 1641 states and 2232 transitions. [2023-11-24 21:28:45,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 0 states have call successors, (0), 0 states 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 21:28:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2232 transitions. [2023-11-24 21:28:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-11-24 21:28:45,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:45,094 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:45,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 21:28:45,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:28:45,308 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:45,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:45,308 INFO L85 PathProgramCache]: Analyzing trace with hash -240620891, now seen corresponding path program 1 times [2023-11-24 21:28:45,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:45,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513157535] [2023-11-24 21:28:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:45,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 1260 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2023-11-24 21:28:45,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:45,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513157535] [2023-11-24 21:28:45,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513157535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:45,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:45,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:45,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638138476] [2023-11-24 21:28:45,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:45,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:45,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:45,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:45,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:45,518 INFO L87 Difference]: Start difference. First operand 1641 states and 2232 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 21:28:45,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:45,695 INFO L93 Difference]: Finished difference Result 3434 states and 4738 transitions. [2023-11-24 21:28:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:45,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 459 [2023-11-24 21:28:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:45,706 INFO L225 Difference]: With dead ends: 3434 [2023-11-24 21:28:45,706 INFO L226 Difference]: Without dead ends: 1816 [2023-11-24 21:28:45,708 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 21:28:45,709 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:45,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 361 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:28:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2023-11-24 21:28:45,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1806. [2023-11-24 21:28:45,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1805 states have (on average 1.3418282548476455) internal successors, (2422), 1805 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states 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 21:28:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2422 transitions. [2023-11-24 21:28:45,762 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2422 transitions. Word has length 459 [2023-11-24 21:28:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:45,763 INFO L495 AbstractCegarLoop]: Abstraction has 1806 states and 2422 transitions. [2023-11-24 21:28:45,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 21:28:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2422 transitions. [2023-11-24 21:28:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2023-11-24 21:28:45,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:45,777 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:45,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-24 21:28:45,777 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:45,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:45,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1116598587, now seen corresponding path program 1 times [2023-11-24 21:28:45,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:45,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079502330] [2023-11-24 21:28:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:45,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2967 backedges. 1680 proven. 0 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2023-11-24 21:28:45,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:45,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079502330] [2023-11-24 21:28:45,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079502330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:28:45,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:28:45,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:28:45,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994691562] [2023-11-24 21:28:45,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:28:45,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:28:45,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:28:45,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:28:45,973 INFO L87 Difference]: Start difference. First operand 1806 states and 2422 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 21:28:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:46,186 INFO L93 Difference]: Finished difference Result 3774 states and 5138 transitions. [2023-11-24 21:28:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:28:46,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 519 [2023-11-24 21:28:46,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:46,198 INFO L225 Difference]: With dead ends: 3774 [2023-11-24 21:28:46,198 INFO L226 Difference]: Without dead ends: 1991 [2023-11-24 21:28:46,201 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 21:28:46,201 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 11 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:46,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 361 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:28:46,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2023-11-24 21:28:46,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1981. [2023-11-24 21:28:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1980 states have (on average 1.3242424242424242) internal successors, (2622), 1980 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states 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 21:28:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2622 transitions. [2023-11-24 21:28:46,260 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2622 transitions. Word has length 519 [2023-11-24 21:28:46,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:46,261 INFO L495 AbstractCegarLoop]: Abstraction has 1981 states and 2622 transitions. [2023-11-24 21:28:46,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 21:28:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2622 transitions. [2023-11-24 21:28:46,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2023-11-24 21:28:46,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:46,275 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:46,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-24 21:28:46,276 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:46,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:46,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1334857221, now seen corresponding path program 1 times [2023-11-24 21:28:46,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:46,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910660208] [2023-11-24 21:28:46,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:46,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:28:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-11-24 21:28:46,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:28:46,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910660208] [2023-11-24 21:28:46,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910660208] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:28:46,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952981027] [2023-11-24 21:28:46,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:46,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:28:46,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:28:46,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:28:46,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 21:28:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:28:46,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:28:46,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:28:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-11-24 21:28:46,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:28:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-11-24 21:28:47,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952981027] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:28:47,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 21:28:47,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-24 21:28:47,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206439238] [2023-11-24 21:28:47,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 21:28:47,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:28:47,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:28:47,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:28:47,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:28:47,092 INFO L87 Difference]: Start difference. First operand 1981 states and 2622 transitions. Second operand has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 0 states 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 21:28:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:28:47,702 INFO L93 Difference]: Finished difference Result 2829 states and 3760 transitions. [2023-11-24 21:28:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 21:28:47,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 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 583 [2023-11-24 21:28:47,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:28:47,704 INFO L225 Difference]: With dead ends: 2829 [2023-11-24 21:28:47,704 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 21:28:47,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1174 GetRequests, 1165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:28:47,708 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 277 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:28:47,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1078 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:28:47,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 21:28:47,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 21:28:47,710 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 21:28:47,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 21:28:47,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 583 [2023-11-24 21:28:47,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:28:47,711 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 21:28:47,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.875) internal successors, (327), 8 states have internal predecessors, (327), 0 states have call successors, (0), 0 states 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 21:28:47,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 21:28:47,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 21:28:47,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 21:28:47,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 21:28:47,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:28:47,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 21:28:48,586 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 469) no Hoare annotation was computed. [2023-11-24 21:28:48,586 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 184 614) no Hoare annotation was computed. [2023-11-24 21:28:48,586 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 157 623) no Hoare annotation was computed. [2023-11-24 21:28:48,586 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 608) no Hoare annotation was computed. [2023-11-24 21:28:48,586 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 619) no Hoare annotation was computed. [2023-11-24 21:28:48,587 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 630) no Hoare annotation was computed. [2023-11-24 21:28:48,587 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 145 627) no Hoare annotation was computed. [2023-11-24 21:28:48,587 INFO L899 garLoopResultBuilder]: For program point L335(lines 335 339) no Hoare annotation was computed. [2023-11-24 21:28:48,587 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 572) no Hoare annotation was computed. [2023-11-24 21:28:48,587 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 440) no Hoare annotation was computed. [2023-11-24 21:28:48,587 INFO L899 garLoopResultBuilder]: For program point L370(lines 352 388) no Hoare annotation was computed. [2023-11-24 21:28:48,587 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 607) no Hoare annotation was computed. [2023-11-24 21:28:48,588 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 618) no Hoare annotation was computed. [2023-11-24 21:28:48,588 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 629) no Hoare annotation was computed. [2023-11-24 21:28:48,588 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2023-11-24 21:28:48,588 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 481) no Hoare annotation was computed. [2023-11-24 21:28:48,588 INFO L899 garLoopResultBuilder]: For program point L536-2(lines 219 600) no Hoare annotation was computed. [2023-11-24 21:28:48,588 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 250) no Hoare annotation was computed. [2023-11-24 21:28:48,589 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 239 250) no Hoare annotation was computed. [2023-11-24 21:28:48,589 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 376) no Hoare annotation was computed. [2023-11-24 21:28:48,589 INFO L899 garLoopResultBuilder]: For program point L405-1(line 405) no Hoare annotation was computed. [2023-11-24 21:28:48,589 INFO L899 garLoopResultBuilder]: For program point L405-3(lines 405 425) no Hoare annotation was computed. [2023-11-24 21:28:48,589 INFO L899 garLoopResultBuilder]: For program point L670(lines 75 687) no Hoare annotation was computed. [2023-11-24 21:28:48,589 INFO L899 garLoopResultBuilder]: For program point L406(line 406) no Hoare annotation was computed. [2023-11-24 21:28:48,589 INFO L899 garLoopResultBuilder]: For program point L406-2(line 406) no Hoare annotation was computed. [2023-11-24 21:28:48,590 INFO L899 garLoopResultBuilder]: For program point L406-4(lines 406 412) no Hoare annotation was computed. [2023-11-24 21:28:48,590 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 246) no Hoare annotation was computed. [2023-11-24 21:28:48,590 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 606) no Hoare annotation was computed. [2023-11-24 21:28:48,590 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 617) no Hoare annotation was computed. [2023-11-24 21:28:48,590 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 628) no Hoare annotation was computed. [2023-11-24 21:28:48,591 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 109 669) the Hoare annotation is: (let ((.cse3 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse1 (not (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (.cse2 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse0 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|))) (or (and (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (and .cse0 (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8512)) (and .cse0 .cse1) (and .cse0 (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656) .cse0 .cse2) (and .cse3 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) .cse2) (and .cse3 (= 3 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and .cse3 .cse1) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3) (and .cse0 .cse2 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8655)) (and (= 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (and (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8528) .cse0))) [2023-11-24 21:28:48,591 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 667) no Hoare annotation was computed. [2023-11-24 21:28:48,591 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2023-11-24 21:28:48,591 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 664) no Hoare annotation was computed. [2023-11-24 21:28:48,591 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2023-11-24 21:28:48,592 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2023-11-24 21:28:48,592 INFO L899 garLoopResultBuilder]: For program point L574-2(lines 574 578) no Hoare annotation was computed. [2023-11-24 21:28:48,592 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 219 600) no Hoare annotation was computed. [2023-11-24 21:28:48,592 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 127 633) no Hoare annotation was computed. [2023-11-24 21:28:48,592 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 605) no Hoare annotation was computed. [2023-11-24 21:28:48,592 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 616) no Hoare annotation was computed. [2023-11-24 21:28:48,592 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 627) no Hoare annotation was computed. [2023-11-24 21:28:48,593 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 638) no Hoare annotation was computed. [2023-11-24 21:28:48,593 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 678) no Hoare annotation was computed. [2023-11-24 21:28:48,593 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 650) no Hoare annotation was computed. [2023-11-24 21:28:48,593 INFO L899 garLoopResultBuilder]: For program point L674-2(lines 674 678) no Hoare annotation was computed. [2023-11-24 21:28:48,593 INFO L899 garLoopResultBuilder]: For program point L641-2(lines 640 662) no Hoare annotation was computed. [2023-11-24 21:28:48,593 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 282) no Hoare annotation was computed. [2023-11-24 21:28:48,594 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 316) no Hoare annotation was computed. [2023-11-24 21:28:48,594 INFO L899 garLoopResultBuilder]: For program point L312-2(lines 219 600) no Hoare annotation was computed. [2023-11-24 21:28:48,594 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 647) no Hoare annotation was computed. [2023-11-24 21:28:48,594 INFO L899 garLoopResultBuilder]: For program point L214(lines 214 604) no Hoare annotation was computed. [2023-11-24 21:28:48,594 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 615) no Hoare annotation was computed. [2023-11-24 21:28:48,594 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 626) no Hoare annotation was computed. [2023-11-24 21:28:48,594 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 637) no Hoare annotation was computed. [2023-11-24 21:28:48,595 INFO L899 garLoopResultBuilder]: For program point L347(line 347) no Hoare annotation was computed. [2023-11-24 21:28:48,595 INFO L899 garLoopResultBuilder]: For program point L347-2(line 347) no Hoare annotation was computed. [2023-11-24 21:28:48,595 INFO L899 garLoopResultBuilder]: For program point L347-4(lines 347 351) no Hoare annotation was computed. [2023-11-24 21:28:48,595 INFO L899 garLoopResultBuilder]: For program point L347-6(lines 219 600) no Hoare annotation was computed. [2023-11-24 21:28:48,595 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 91) no Hoare annotation was computed. [2023-11-24 21:28:48,595 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 459) no Hoare annotation was computed. [2023-11-24 21:28:48,595 INFO L899 garLoopResultBuilder]: For program point L414(lines 405 425) no Hoare annotation was computed. [2023-11-24 21:28:48,596 INFO L899 garLoopResultBuilder]: For program point L447-2(lines 447 459) no Hoare annotation was computed. [2023-11-24 21:28:48,596 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 202 608) no Hoare annotation was computed. [2023-11-24 21:28:48,596 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 614) no Hoare annotation was computed. [2023-11-24 21:28:48,596 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 625) no Hoare annotation was computed. [2023-11-24 21:28:48,596 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 636) no Hoare annotation was computed. [2023-11-24 21:28:48,596 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2023-11-24 21:28:48,596 INFO L899 garLoopResultBuilder]: For program point L86-2(lines 83 91) no Hoare annotation was computed. [2023-11-24 21:28:48,597 INFO L899 garLoopResultBuilder]: For program point L549(lines 549 554) no Hoare annotation was computed. [2023-11-24 21:28:48,597 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 455) no Hoare annotation was computed. [2023-11-24 21:28:48,597 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 421) no Hoare annotation was computed. [2023-11-24 21:28:48,597 INFO L899 garLoopResultBuilder]: For program point L252(lines 252 257) no Hoare annotation was computed. [2023-11-24 21:28:48,597 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 613) no Hoare annotation was computed. [2023-11-24 21:28:48,597 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 624) no Hoare annotation was computed. [2023-11-24 21:28:48,597 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 635) no Hoare annotation was computed. [2023-11-24 21:28:48,598 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 594) no Hoare annotation was computed. [2023-11-24 21:28:48,598 INFO L899 garLoopResultBuilder]: For program point L584-1(lines 584 594) no Hoare annotation was computed. [2023-11-24 21:28:48,598 INFO L899 garLoopResultBuilder]: For program point L518(lines 518 522) no Hoare annotation was computed. [2023-11-24 21:28:48,598 INFO L899 garLoopResultBuilder]: For program point L518-2(lines 518 522) no Hoare annotation was computed. [2023-11-24 21:28:48,598 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 490) no Hoare annotation was computed. [2023-11-24 21:28:48,598 INFO L899 garLoopResultBuilder]: For program point L222(lines 115 637) no Hoare annotation was computed. [2023-11-24 21:28:48,598 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 178 616) no Hoare annotation was computed. [2023-11-24 21:28:48,599 INFO L899 garLoopResultBuilder]: For program point L685(lines 75 687) no Hoare annotation was computed. [2023-11-24 21:28:48,599 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 658) no Hoare annotation was computed. [2023-11-24 21:28:48,599 INFO L899 garLoopResultBuilder]: For program point L355(line 355) no Hoare annotation was computed. [2023-11-24 21:28:48,599 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 326) no Hoare annotation was computed. [2023-11-24 21:28:48,599 INFO L899 garLoopResultBuilder]: For program point L355-2(line 355) no Hoare annotation was computed. [2023-11-24 21:28:48,599 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 21:28:48,599 INFO L899 garLoopResultBuilder]: For program point L322-2(lines 322 326) no Hoare annotation was computed. [2023-11-24 21:28:48,600 INFO L899 garLoopResultBuilder]: For program point L355-4(lines 355 387) no Hoare annotation was computed. [2023-11-24 21:28:48,600 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 612) no Hoare annotation was computed. [2023-11-24 21:28:48,600 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 623) no Hoare annotation was computed. [2023-11-24 21:28:48,600 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 634) no Hoare annotation was computed. [2023-11-24 21:28:48,600 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 196 610) no Hoare annotation was computed. [2023-11-24 21:28:48,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##195(lines 394 431) no Hoare annotation was computed. [2023-11-24 21:28:48,600 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 591) no Hoare annotation was computed. [2023-11-24 21:28:48,601 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 75 687) no Hoare annotation was computed. [2023-11-24 21:28:48,601 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-11-24 21:28:48,601 INFO L899 garLoopResultBuilder]: For program point L93-2(line 93) no Hoare annotation was computed. [2023-11-24 21:28:48,601 INFO L899 garLoopResultBuilder]: For program point L93-4(lines 93 101) no Hoare annotation was computed. [2023-11-24 21:28:48,601 INFO L899 garLoopResultBuilder]: For program point L93-5(lines 75 687) no Hoare annotation was computed. [2023-11-24 21:28:48,601 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 386) no Hoare annotation was computed. [2023-11-24 21:28:48,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##137(line 331) no Hoare annotation was computed. [2023-11-24 21:28:48,602 INFO L899 garLoopResultBuilder]: For program point L358-1(lines 358 386) no Hoare annotation was computed. [2023-11-24 21:28:48,602 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 272) no Hoare annotation was computed. [2023-11-24 21:28:48,602 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 611) no Hoare annotation was computed. [2023-11-24 21:28:48,602 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 622) no Hoare annotation was computed. [2023-11-24 21:28:48,602 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 633) no Hoare annotation was computed. [2023-11-24 21:28:48,602 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-11-24 21:28:48,602 INFO L899 garLoopResultBuilder]: For program point L94-2(line 94) no Hoare annotation was computed. [2023-11-24 21:28:48,603 INFO L899 garLoopResultBuilder]: For program point L94-4(lines 94 98) no Hoare annotation was computed. [2023-11-24 21:28:48,603 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 208 606) no Hoare annotation was computed. [2023-11-24 21:28:48,603 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 383) no Hoare annotation was computed. [2023-11-24 21:28:48,603 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2023-11-24 21:28:48,603 INFO L899 garLoopResultBuilder]: For program point L227-2(lines 219 600) no Hoare annotation was computed. [2023-11-24 21:28:48,603 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 190 612) no Hoare annotation was computed. [2023-11-24 21:28:48,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 21:28:48,604 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 266) no Hoare annotation was computed. [2023-11-24 21:28:48,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##279(lines 639 667) no Hoare annotation was computed. [2023-11-24 21:28:48,604 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 136 630) no Hoare annotation was computed. [2023-11-24 21:28:48,604 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 567) no Hoare annotation was computed. [2023-11-24 21:28:48,604 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 299) no Hoare annotation was computed. [2023-11-24 21:28:48,604 INFO L899 garLoopResultBuilder]: For program point L295-2(lines 219 600) no Hoare annotation was computed. [2023-11-24 21:28:48,604 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 610) no Hoare annotation was computed. [2023-11-24 21:28:48,605 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 621) no Hoare annotation was computed. [2023-11-24 21:28:48,605 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 632) no Hoare annotation was computed. [2023-11-24 21:28:48,605 INFO L899 garLoopResultBuilder]: For program point $Ultimate##209(line 405) no Hoare annotation was computed. [2023-11-24 21:28:48,605 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 426) no Hoare annotation was computed. [2023-11-24 21:28:48,605 INFO L899 garLoopResultBuilder]: For program point L362(line 362) no Hoare annotation was computed. [2023-11-24 21:28:48,605 INFO L899 garLoopResultBuilder]: For program point L362-2(line 362) no Hoare annotation was computed. [2023-11-24 21:28:48,605 INFO L899 garLoopResultBuilder]: For program point L362-4(lines 362 382) no Hoare annotation was computed. [2023-11-24 21:28:48,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 681) no Hoare annotation was computed. [2023-11-24 21:28:48,606 INFO L899 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2023-11-24 21:28:48,606 INFO L899 garLoopResultBuilder]: For program point L396-2(line 396) no Hoare annotation was computed. [2023-11-24 21:28:48,606 INFO L899 garLoopResultBuilder]: For program point L396-4(lines 396 402) no Hoare annotation was computed. [2023-11-24 21:28:48,606 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 169 619) no Hoare annotation was computed. [2023-11-24 21:28:48,606 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 566) no Hoare annotation was computed. [2023-11-24 21:28:48,607 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 534) no Hoare annotation was computed. [2023-11-24 21:28:48,607 INFO L899 garLoopResultBuilder]: For program point L364(line 364) no Hoare annotation was computed. [2023-11-24 21:28:48,607 INFO L899 garLoopResultBuilder]: For program point L331-1(line 331) no Hoare annotation was computed. [2023-11-24 21:28:48,607 INFO L899 garLoopResultBuilder]: For program point L364-2(line 364) no Hoare annotation was computed. [2023-11-24 21:28:48,607 INFO L899 garLoopResultBuilder]: For program point L331-3(lines 331 340) no Hoare annotation was computed. [2023-11-24 21:28:48,607 INFO L899 garLoopResultBuilder]: For program point L364-4(lines 364 368) no Hoare annotation was computed. [2023-11-24 21:28:48,607 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 609) no Hoare annotation was computed. [2023-11-24 21:28:48,608 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 620) no Hoare annotation was computed. [2023-11-24 21:28:48,608 INFO L899 garLoopResultBuilder]: For program point L331-5(lines 331 340) no Hoare annotation was computed. [2023-11-24 21:28:48,608 INFO L899 garLoopResultBuilder]: For program point L364-6(lines 362 380) no Hoare annotation was computed. [2023-11-24 21:28:48,608 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 631) no Hoare annotation was computed. [2023-11-24 21:28:48,608 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 501) no Hoare annotation was computed. [2023-11-24 21:28:48,611 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:28:48,613 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:28:48,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:28:48 BoogieIcfgContainer [2023-11-24 21:28:48,627 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:28:48,628 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:28:48,628 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:28:48,628 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:28:48,628 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:28:38" (3/4) ... [2023-11-24 21:28:48,630 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 21:28:48,656 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-24 21:28:48,658 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-24 21:28:48,659 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 21:28:48,660 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 21:28:48,856 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/witness.graphml [2023-11-24 21:28:48,857 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/bin/uautomizer-verify-NlZe1sFDwI/witness.yml [2023-11-24 21:28:48,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:28:48,858 INFO L158 Benchmark]: Toolchain (without parser) took 12303.98ms. Allocated memory was 127.9MB in the beginning and 247.5MB in the end (delta: 119.5MB). Free memory was 76.4MB in the beginning and 83.1MB in the end (delta: -6.8MB). Peak memory consumption was 115.9MB. Max. memory is 16.1GB. [2023-11-24 21:28:48,859 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:28:48,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.84ms. Allocated memory is still 127.9MB. Free memory was 76.1MB in the beginning and 60.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 21:28:48,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.72ms. Allocated memory is still 127.9MB. Free memory was 60.0MB in the beginning and 98.4MB in the end (delta: -38.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-11-24 21:28:48,865 INFO L158 Benchmark]: Boogie Preprocessor took 68.74ms. Allocated memory is still 127.9MB. Free memory was 98.4MB in the beginning and 95.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 21:28:48,866 INFO L158 Benchmark]: RCFGBuilder took 959.49ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 55.2MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-24 21:28:48,866 INFO L158 Benchmark]: TraceAbstraction took 10513.50ms. Allocated memory was 127.9MB in the beginning and 247.5MB in the end (delta: 119.5MB). Free memory was 54.3MB in the beginning and 94.7MB in the end (delta: -40.3MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. [2023-11-24 21:28:48,866 INFO L158 Benchmark]: Witness Printer took 229.73ms. Allocated memory is still 247.5MB. Free memory was 94.7MB in the beginning and 83.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 21:28:48,871 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.84ms. Allocated memory is still 127.9MB. Free memory was 76.1MB in the beginning and 60.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.72ms. Allocated memory is still 127.9MB. Free memory was 60.0MB in the beginning and 98.4MB in the end (delta: -38.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.74ms. Allocated memory is still 127.9MB. Free memory was 98.4MB in the beginning and 95.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 959.49ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 55.2MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10513.50ms. Allocated memory was 127.9MB in the beginning and 247.5MB in the end (delta: 119.5MB). Free memory was 54.3MB in the beginning and 94.7MB in the end (delta: -40.3MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. * Witness Printer took 229.73ms. Allocated memory is still 247.5MB. Free memory was 94.7MB in the beginning and 83.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 681]: 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, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 20, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2096 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2096 mSDsluCounter, 8761 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3766 mSDsCounter, 487 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2614 IncrementalHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 487 mSolverCounterUnsat, 4995 mSDtfsCounter, 2614 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1960 GetRequests, 1925 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1981occurred in iteration=19, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 20 MinimizatonAttempts, 778 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 46 NumberOfFragments, 102 HoareAnnotationTreeSize, 1 FomulaSimplifications, 416 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 1 FomulaSimplificationsInter, 379 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 5329 NumberOfCodeBlocks, 5329 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 6250 ConstructedInterpolants, 0 QuantifiedInterpolants, 8217 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1441 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 24 InterpolantComputations, 18 PerfectInterpolantSequences, 24854/25004 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((8464 == s__state) && (blastFlag == 0)) || ((2 == blastFlag) && (8560 == s__state))) || ((2 == blastFlag) && (s__state == 8512))) || ((2 == blastFlag) && !((0 == s__hit)))) || ((2 == blastFlag) && (8544 == s__state))) || (((s__state == 8656) && (2 == blastFlag)) && (s__s3__tmp__next_state___0 <= 8576))) || (((3 == blastFlag) && (s__state == 8672)) && (s__s3__tmp__next_state___0 <= 8576))) || (((3 == blastFlag) && (3 == s__s3__tmp__next_state___0)) && (8448 == s__state))) || ((3 == blastFlag) && !((0 == s__hit)))) || (s__state == 3)) || (((2 == blastFlag) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8655))) || ((8496 == s__state) && (blastFlag == 1))) || ((s__state == 8528) && (2 == blastFlag))) RESULT: Ultimate proved your program to be correct! [2023-11-24 21:28:48,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ab704f-04ec-4ed6-9c4b-486a66c3d790/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