./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC --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 5be1985e273f5c8eee31a67418035a8392c7bd6f53e92cf10ee992185aae91b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:52:47,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:52:48,005 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:52:48,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:52:48,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:52:48,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:52:48,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:52:48,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:52:48,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:52:48,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:52:48,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:52:48,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:52:48,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:52:48,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:52:48,063 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:52:48,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:52:48,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:52:48,063 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:52:48,063 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:52:48,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:52:48,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:52:48,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:52:48,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:52:48,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:52:48,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:52:48,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:52:48,065 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:52:48,065 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:52:48,065 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:52:48,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:52:48,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:52:48,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:52:48,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:48,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:52:48,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:52:48,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:52:48,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:52:48,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:48,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:52:48,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:52:48,068 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:52:48,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:52:48,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:52:48,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:52:48,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:52:48,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:52:48,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:52:48,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:52:48,069 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC 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 -> 5be1985e273f5c8eee31a67418035a8392c7bd6f53e92cf10ee992185aae91b7 [2024-11-24 00:52:48,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:52:48,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:52:48,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:52:48,382 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:52:48,383 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:52:48,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-58.i [2024-11-24 00:52:51,456 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/data/62ab92001/77425e4270ea4f6a96599908946d36bf/FLAG140c7e684 [2024-11-24 00:52:51,934 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:52:51,938 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-58.i [2024-11-24 00:52:51,962 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/data/62ab92001/77425e4270ea4f6a96599908946d36bf/FLAG140c7e684 [2024-11-24 00:52:52,024 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/data/62ab92001/77425e4270ea4f6a96599908946d36bf [2024-11-24 00:52:52,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:52:52,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:52:52,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:52:52,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:52:52,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:52:52,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24aaf659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52, skipping insertion in model container [2024-11-24 00:52:52,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:52:52,294 WARN L250 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_7bf2c648-e739-4dba-a217-44c648241407/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-58.i[916,929] [2024-11-24 00:52:52,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:52:52,572 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:52:52,582 WARN L250 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_7bf2c648-e739-4dba-a217-44c648241407/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-58.i[916,929] [2024-11-24 00:52:52,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:52:52,748 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:52:52,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52 WrapperNode [2024-11-24 00:52:52,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:52:52,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:52:52,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:52:52,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:52:52,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,850 INFO L138 Inliner]: procedures = 26, calls = 119, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 834 [2024-11-24 00:52:52,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:52:52,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:52:52,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:52:52,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:52:52,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,904 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]. [2024-11-24 00:52:52,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,927 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,932 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:52:52,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:52:52,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:52:52,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:52:52,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (1/1) ... [2024-11-24 00:52:52,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:53,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:52:53,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:52:53,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:52:53,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:52:53,083 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:52:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:52:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:52:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:52:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:52:53,287 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:52:53,289 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:52:55,230 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-24 00:52:55,230 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:52:55,260 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:52:55,260 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:52:55,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:52:55 BoogieIcfgContainer [2024-11-24 00:52:55,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:52:55,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:52:55,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:52:55,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:52:55,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:52:52" (1/3) ... [2024-11-24 00:52:55,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa1c115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:52:55, skipping insertion in model container [2024-11-24 00:52:55,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:52" (2/3) ... [2024-11-24 00:52:55,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa1c115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:52:55, skipping insertion in model container [2024-11-24 00:52:55,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:52:55" (3/3) ... [2024-11-24 00:52:55,278 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-58.i [2024-11-24 00:52:55,297 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:52:55,301 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-58.i that has 2 procedures, 348 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:52:55,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:52:55,422 INFO L333 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, 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;@600129ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:52:55,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:52:55,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 348 states, 239 states have (on average 1.594142259414226) internal successors, (381), 240 states have internal predecessors, (381), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-24 00:52:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-24 00:52:55,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:55,486 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:52:55,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:55,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash 2106229730, now seen corresponding path program 1 times [2024-11-24 00:52:55,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:55,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224863892] [2024-11-24 00:52:55,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:55,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:56,599 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 22050 trivial. 0 not checked. [2024-11-24 00:52:56,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:56,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224863892] [2024-11-24 00:52:56,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224863892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:52:56,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948808636] [2024-11-24 00:52:56,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:56,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:52:56,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:52:56,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:52:56,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:52:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:57,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:52:57,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:52:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 22050 trivial. 0 not checked. [2024-11-24 00:52:57,318 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:52:57,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948808636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:57,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:52:57,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:52:57,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623774296] [2024-11-24 00:52:57,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:57,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:52:57,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:57,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:52:57,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:52:57,367 INFO L87 Difference]: Start difference. First operand has 348 states, 239 states have (on average 1.594142259414226) internal successors, (381), 240 states have internal predecessors, (381), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 2 states have call successors, (106) [2024-11-24 00:52:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:57,471 INFO L93 Difference]: Finished difference Result 689 states and 1286 transitions. [2024-11-24 00:52:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:52:57,475 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 2 states have call successors, (106) Word has length 683 [2024-11-24 00:52:57,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:57,485 INFO L225 Difference]: With dead ends: 689 [2024-11-24 00:52:57,485 INFO L226 Difference]: Without dead ends: 344 [2024-11-24 00:52:57,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 684 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:52:57,494 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:57,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:52:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-24 00:52:57,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-24 00:52:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 236 states have (on average 1.5805084745762712) internal successors, (373), 236 states have internal predecessors, (373), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-24 00:52:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 585 transitions. [2024-11-24 00:52:57,619 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 585 transitions. Word has length 683 [2024-11-24 00:52:57,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:57,619 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 585 transitions. [2024-11-24 00:52:57,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 2 states have call successors, (106) [2024-11-24 00:52:57,620 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 585 transitions. [2024-11-24 00:52:57,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-24 00:52:57,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:57,644 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:52:57,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:52:57,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf2c648-e739-4dba-a217-44c648241407/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:52:57,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:57,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:57,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1687683558, now seen corresponding path program 1 times [2024-11-24 00:52:57,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:57,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145587739] [2024-11-24 00:52:57,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:57,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:58,849 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:52:58,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:58,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145587739] [2024-11-24 00:52:58,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145587739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:58,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:58,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:52:58,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306714247] [2024-11-24 00:52:58,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:58,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:52:58,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:58,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:52:58,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:52:58,862 INFO L87 Difference]: Start difference. First operand 344 states and 585 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:52:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:59,030 INFO L93 Difference]: Finished difference Result 1024 states and 1745 transitions. [2024-11-24 00:52:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:52:59,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 683 [2024-11-24 00:52:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:59,039 INFO L225 Difference]: With dead ends: 1024 [2024-11-24 00:52:59,039 INFO L226 Difference]: Without dead ends: 683 [2024-11-24 00:52:59,041 INFO L434 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 [2024-11-24 00:52:59,042 INFO L435 NwaCegarLoop]: 927 mSDtfsCounter, 569 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:59,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1498 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:52:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-24 00:52:59,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 681. [2024-11-24 00:52:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 466 states have (on average 1.5729613733905579) internal successors, (733), 466 states have internal predecessors, (733), 212 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-24 00:52:59,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1157 transitions. [2024-11-24 00:52:59,159 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1157 transitions. Word has length 683 [2024-11-24 00:52:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:59,163 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1157 transitions. [2024-11-24 00:52:59,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:52:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1157 transitions. [2024-11-24 00:52:59,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-24 00:52:59,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:59,214 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:52:59,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:52:59,215 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:59,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:59,216 INFO L85 PathProgramCache]: Analyzing trace with hash -87592614, now seen corresponding path program 1 times [2024-11-24 00:52:59,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:59,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712267815] [2024-11-24 00:52:59,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:59,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:00,007 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:00,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:00,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712267815] [2024-11-24 00:53:00,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712267815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:00,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:00,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:53:00,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613798723] [2024-11-24 00:53:00,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:00,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:53:00,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:00,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:53:00,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:53:00,015 INFO L87 Difference]: Start difference. First operand 681 states and 1157 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2024-11-24 00:53:00,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:00,189 INFO L93 Difference]: Finished difference Result 1359 states and 2311 transitions. [2024-11-24 00:53:00,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:53:00,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 683 [2024-11-24 00:53:00,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:00,202 INFO L225 Difference]: With dead ends: 1359 [2024-11-24 00:53:00,204 INFO L226 Difference]: Without dead ends: 681 [2024-11-24 00:53:00,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:53:00,210 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 486 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:00,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1130 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:53:00,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-24 00:53:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2024-11-24 00:53:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 212 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-24 00:53:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1155 transitions. [2024-11-24 00:53:00,360 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1155 transitions. Word has length 683 [2024-11-24 00:53:00,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:00,364 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1155 transitions. [2024-11-24 00:53:00,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2024-11-24 00:53:00,365 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1155 transitions. [2024-11-24 00:53:00,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-24 00:53:00,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:00,374 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:00,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:53:00,375 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:00,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:00,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1873982044, now seen corresponding path program 1 times [2024-11-24 00:53:00,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:00,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246338580] [2024-11-24 00:53:00,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:00,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:00,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:00,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246338580] [2024-11-24 00:53:00,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246338580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:00,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:00,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:53:00,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426595969] [2024-11-24 00:53:00,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:00,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:53:00,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:00,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:53:00,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:53:00,818 INFO L87 Difference]: Start difference. First operand 681 states and 1155 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:00,970 INFO L93 Difference]: Finished difference Result 2035 states and 3455 transitions. [2024-11-24 00:53:00,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:53:00,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 683 [2024-11-24 00:53:00,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:00,987 INFO L225 Difference]: With dead ends: 2035 [2024-11-24 00:53:00,987 INFO L226 Difference]: Without dead ends: 1357 [2024-11-24 00:53:00,991 INFO L434 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 [2024-11-24 00:53:00,994 INFO L435 NwaCegarLoop]: 1001 mSDtfsCounter, 563 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:00,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 1573 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:53:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2024-11-24 00:53:01,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1355. [2024-11-24 00:53:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 926 states have (on average 1.5637149028077755) internal successors, (1448), 926 states have internal predecessors, (1448), 424 states have call successors, (424), 4 states have call predecessors, (424), 4 states have return successors, (424), 424 states have call predecessors, (424), 424 states have call successors, (424) [2024-11-24 00:53:01,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 2296 transitions. [2024-11-24 00:53:01,248 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 2296 transitions. Word has length 683 [2024-11-24 00:53:01,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:01,251 INFO L471 AbstractCegarLoop]: Abstraction has 1355 states and 2296 transitions. [2024-11-24 00:53:01,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:01,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 2296 transitions. [2024-11-24 00:53:01,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2024-11-24 00:53:01,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:01,259 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:01,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:53:01,260 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:01,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:01,261 INFO L85 PathProgramCache]: Analyzing trace with hash 319834141, now seen corresponding path program 1 times [2024-11-24 00:53:01,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:01,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498723637] [2024-11-24 00:53:01,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:01,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:02,007 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:02,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:02,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498723637] [2024-11-24 00:53:02,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498723637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:02,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:02,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:53:02,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717816150] [2024-11-24 00:53:02,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:02,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:53:02,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:02,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:53:02,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:53:02,014 INFO L87 Difference]: Start difference. First operand 1355 states and 2296 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2024-11-24 00:53:02,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:02,383 INFO L93 Difference]: Finished difference Result 4059 states and 6882 transitions. [2024-11-24 00:53:02,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:53:02,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 684 [2024-11-24 00:53:02,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:02,411 INFO L225 Difference]: With dead ends: 4059 [2024-11-24 00:53:02,411 INFO L226 Difference]: Without dead ends: 2707 [2024-11-24 00:53:02,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:53:02,419 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 445 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:02,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1714 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:53:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2024-11-24 00:53:02,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2705. [2024-11-24 00:53:02,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 1848 states have (on average 1.5627705627705628) internal successors, (2888), 1848 states have internal predecessors, (2888), 848 states have call successors, (848), 8 states have call predecessors, (848), 8 states have return successors, (848), 848 states have call predecessors, (848), 848 states have call successors, (848) [2024-11-24 00:53:02,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 4584 transitions. [2024-11-24 00:53:02,864 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 4584 transitions. Word has length 684 [2024-11-24 00:53:02,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:02,868 INFO L471 AbstractCegarLoop]: Abstraction has 2705 states and 4584 transitions. [2024-11-24 00:53:02,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2024-11-24 00:53:02,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 4584 transitions. [2024-11-24 00:53:02,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-24 00:53:02,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:02,878 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:02,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:53:02,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:02,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:02,880 INFO L85 PathProgramCache]: Analyzing trace with hash 151236685, now seen corresponding path program 1 times [2024-11-24 00:53:02,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:02,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281070690] [2024-11-24 00:53:02,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:02,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:04,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:04,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281070690] [2024-11-24 00:53:04,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281070690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:04,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:04,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:53:04,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973103348] [2024-11-24 00:53:04,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:04,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:53:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:04,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:53:04,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:53:04,046 INFO L87 Difference]: Start difference. First operand 2705 states and 4584 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:04,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:04,355 INFO L93 Difference]: Finished difference Result 5407 states and 9165 transitions. [2024-11-24 00:53:04,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:53:04,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 685 [2024-11-24 00:53:04,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:04,380 INFO L225 Difference]: With dead ends: 5407 [2024-11-24 00:53:04,380 INFO L226 Difference]: Without dead ends: 2705 [2024-11-24 00:53:04,390 INFO L434 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 [2024-11-24 00:53:04,391 INFO L435 NwaCegarLoop]: 582 mSDtfsCounter, 337 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:04,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 582 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:53:04,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-11-24 00:53:04,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2705. [2024-11-24 00:53:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 1848 states have (on average 1.5584415584415585) internal successors, (2880), 1848 states have internal predecessors, (2880), 848 states have call successors, (848), 8 states have call predecessors, (848), 8 states have return successors, (848), 848 states have call predecessors, (848), 848 states have call successors, (848) [2024-11-24 00:53:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 4576 transitions. [2024-11-24 00:53:04,870 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 4576 transitions. Word has length 685 [2024-11-24 00:53:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:04,871 INFO L471 AbstractCegarLoop]: Abstraction has 2705 states and 4576 transitions. [2024-11-24 00:53:04,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 4576 transitions. [2024-11-24 00:53:04,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-24 00:53:04,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:04,879 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:04,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:53:04,879 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:04,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:04,880 INFO L85 PathProgramCache]: Analyzing trace with hash -869831669, now seen corresponding path program 1 times [2024-11-24 00:53:04,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:04,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782073880] [2024-11-24 00:53:04,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:04,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:05,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:05,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782073880] [2024-11-24 00:53:05,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782073880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:05,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:05,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:53:05,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257229478] [2024-11-24 00:53:05,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:05,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:53:05,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:05,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:53:05,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:53:05,717 INFO L87 Difference]: Start difference. First operand 2705 states and 4576 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:06,785 INFO L93 Difference]: Finished difference Result 8739 states and 14863 transitions. [2024-11-24 00:53:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:53:06,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 685 [2024-11-24 00:53:06,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:06,825 INFO L225 Difference]: With dead ends: 8739 [2024-11-24 00:53:06,825 INFO L226 Difference]: Without dead ends: 6037 [2024-11-24 00:53:06,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:53:06,838 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 676 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:06,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 1793 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:53:06,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2024-11-24 00:53:07,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 6017. [2024-11-24 00:53:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 4568 states have (on average 1.618213660245184) internal successors, (7392), 4584 states have internal predecessors, (7392), 1424 states have call successors, (1424), 24 states have call predecessors, (1424), 24 states have return successors, (1424), 1408 states have call predecessors, (1424), 1424 states have call successors, (1424) [2024-11-24 00:53:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 10240 transitions. [2024-11-24 00:53:07,653 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 10240 transitions. Word has length 685 [2024-11-24 00:53:07,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:07,654 INFO L471 AbstractCegarLoop]: Abstraction has 6017 states and 10240 transitions. [2024-11-24 00:53:07,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:07,655 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 10240 transitions. [2024-11-24 00:53:07,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-24 00:53:07,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:07,672 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:07,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:53:07,673 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:07,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:07,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2053328329, now seen corresponding path program 1 times [2024-11-24 00:53:07,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:07,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934233278] [2024-11-24 00:53:07,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:07,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:09,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:09,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934233278] [2024-11-24 00:53:09,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934233278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:09,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:09,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:53:09,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011569540] [2024-11-24 00:53:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:09,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:53:09,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:09,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:53:09,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:53:09,186 INFO L87 Difference]: Start difference. First operand 6017 states and 10240 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:13,223 INFO L93 Difference]: Finished difference Result 20129 states and 34204 transitions. [2024-11-24 00:53:13,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:53:13,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 685 [2024-11-24 00:53:13,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:13,338 INFO L225 Difference]: With dead ends: 20129 [2024-11-24 00:53:13,338 INFO L226 Difference]: Without dead ends: 14115 [2024-11-24 00:53:13,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:53:13,362 INFO L435 NwaCegarLoop]: 1031 mSDtfsCounter, 2365 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:13,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 3309 Invalid, 1619 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [364 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 00:53:13,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14115 states. [2024-11-24 00:53:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14115 to 12507. [2024-11-24 00:53:14,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12507 states, 10042 states have (on average 1.6444931288587932) internal successors, (16514), 10094 states have internal predecessors, (16514), 2404 states have call successors, (2404), 60 states have call predecessors, (2404), 60 states have return successors, (2404), 2352 states have call predecessors, (2404), 2404 states have call successors, (2404) [2024-11-24 00:53:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12507 states to 12507 states and 21322 transitions. [2024-11-24 00:53:14,665 INFO L78 Accepts]: Start accepts. Automaton has 12507 states and 21322 transitions. Word has length 685 [2024-11-24 00:53:14,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:14,667 INFO L471 AbstractCegarLoop]: Abstraction has 12507 states and 21322 transitions. [2024-11-24 00:53:14,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 12507 states and 21322 transitions. [2024-11-24 00:53:14,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-24 00:53:14,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:14,684 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:14,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:53:14,686 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:14,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1238006535, now seen corresponding path program 1 times [2024-11-24 00:53:14,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:14,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351234801] [2024-11-24 00:53:14,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:14,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:15,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:15,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351234801] [2024-11-24 00:53:15,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351234801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:15,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:15,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:53:15,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222985351] [2024-11-24 00:53:15,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:15,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:53:15,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:15,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:53:15,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:53:15,583 INFO L87 Difference]: Start difference. First operand 12507 states and 21322 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:16,675 INFO L93 Difference]: Finished difference Result 25013 states and 42642 transitions. [2024-11-24 00:53:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:53:16,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 685 [2024-11-24 00:53:16,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:16,765 INFO L225 Difference]: With dead ends: 25013 [2024-11-24 00:53:16,765 INFO L226 Difference]: Without dead ends: 22005 [2024-11-24 00:53:16,783 INFO L434 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 [2024-11-24 00:53:16,784 INFO L435 NwaCegarLoop]: 582 mSDtfsCounter, 393 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:16,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1156 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:53:16,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22005 states. [2024-11-24 00:53:19,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22005 to 21985. [2024-11-24 00:53:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21985 states, 17780 states have (on average 1.6462317210348707) internal successors, (29270), 17876 states have internal predecessors, (29270), 4096 states have call successors, (4096), 108 states have call predecessors, (4096), 108 states have return successors, (4096), 4000 states have call predecessors, (4096), 4096 states have call successors, (4096) [2024-11-24 00:53:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21985 states to 21985 states and 37462 transitions. [2024-11-24 00:53:19,322 INFO L78 Accepts]: Start accepts. Automaton has 21985 states and 37462 transitions. Word has length 685 [2024-11-24 00:53:19,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:19,323 INFO L471 AbstractCegarLoop]: Abstraction has 21985 states and 37462 transitions. [2024-11-24 00:53:19,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 21985 states and 37462 transitions. [2024-11-24 00:53:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-24 00:53:19,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:19,348 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:19,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:53:19,349 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:19,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:19,349 INFO L85 PathProgramCache]: Analyzing trace with hash 112746315, now seen corresponding path program 1 times [2024-11-24 00:53:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:19,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144347276] [2024-11-24 00:53:19,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:19,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:19,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:19,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144347276] [2024-11-24 00:53:19,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144347276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:19,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:19,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:53:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566574891] [2024-11-24 00:53:19,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:19,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:53:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:19,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:53:19,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:53:19,947 INFO L87 Difference]: Start difference. First operand 21985 states and 37462 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:22,061 INFO L93 Difference]: Finished difference Result 56101 states and 95456 transitions. [2024-11-24 00:53:22,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:53:22,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 685 [2024-11-24 00:53:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:22,204 INFO L225 Difference]: With dead ends: 56101 [2024-11-24 00:53:22,205 INFO L226 Difference]: Without dead ends: 34119 [2024-11-24 00:53:22,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:53:22,269 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 396 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:22,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 2227 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:53:22,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34119 states. [2024-11-24 00:53:26,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34119 to 34045. [2024-11-24 00:53:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34045 states, 27068 states have (on average 1.6329244864784986) internal successors, (44200), 27212 states have internal predecessors, (44200), 6808 states have call successors, (6808), 168 states have call predecessors, (6808), 168 states have return successors, (6808), 6664 states have call predecessors, (6808), 6808 states have call successors, (6808) [2024-11-24 00:53:26,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34045 states to 34045 states and 57816 transitions. [2024-11-24 00:53:26,385 INFO L78 Accepts]: Start accepts. Automaton has 34045 states and 57816 transitions. Word has length 685 [2024-11-24 00:53:26,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:26,386 INFO L471 AbstractCegarLoop]: Abstraction has 34045 states and 57816 transitions. [2024-11-24 00:53:26,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:26,387 INFO L276 IsEmpty]: Start isEmpty. Operand 34045 states and 57816 transitions. [2024-11-24 00:53:26,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2024-11-24 00:53:26,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:26,422 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:26,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:53:26,422 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:26,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash 305174179, now seen corresponding path program 1 times [2024-11-24 00:53:26,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:26,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257712700] [2024-11-24 00:53:26,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:26,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:26,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:26,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257712700] [2024-11-24 00:53:26,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257712700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:26,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:26,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:53:26,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851355229] [2024-11-24 00:53:26,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:26,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:53:26,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:26,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:53:26,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:53:26,951 INFO L87 Difference]: Start difference. First operand 34045 states and 57816 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:53:33,264 INFO L93 Difference]: Finished difference Result 121339 states and 204719 transitions. [2024-11-24 00:53:33,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:53:33,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 686 [2024-11-24 00:53:33,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:53:33,834 INFO L225 Difference]: With dead ends: 121339 [2024-11-24 00:53:33,834 INFO L226 Difference]: Without dead ends: 87297 [2024-11-24 00:53:33,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:53:33,907 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 970 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:53:33,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 2266 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:53:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87297 states. [2024-11-24 00:53:41,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87297 to 84213. [2024-11-24 00:53:41,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84213 states, 63284 states have (on average 1.5903545919979774) internal successors, (100644), 63716 states have internal predecessors, (100644), 20424 states have call successors, (20424), 504 states have call predecessors, (20424), 504 states have return successors, (20424), 19992 states have call predecessors, (20424), 20424 states have call successors, (20424) [2024-11-24 00:53:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84213 states to 84213 states and 141492 transitions. [2024-11-24 00:53:42,493 INFO L78 Accepts]: Start accepts. Automaton has 84213 states and 141492 transitions. Word has length 686 [2024-11-24 00:53:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:53:42,495 INFO L471 AbstractCegarLoop]: Abstraction has 84213 states and 141492 transitions. [2024-11-24 00:53:42,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-11-24 00:53:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 84213 states and 141492 transitions. [2024-11-24 00:53:42,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2024-11-24 00:53:42,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:53:42,573 INFO L218 NwaCegarLoop]: trace histogram [106, 106, 106, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:53:42,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:53:42,573 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:53:42,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:42,576 INFO L85 PathProgramCache]: Analyzing trace with hash 278108577, now seen corresponding path program 1 times [2024-11-24 00:53:42,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:42,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332226338] [2024-11-24 00:53:42,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:42,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2024-11-24 00:53:44,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332226338] [2024-11-24 00:53:44,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332226338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:44,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:44,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:53:44,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886486270] [2024-11-24 00:53:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:44,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:53:44,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:44,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:53:44,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:53:44,621 INFO L87 Difference]: Start difference. First operand 84213 states and 141492 transitions. Second operand has 8 states, 8 states have (on average 19.875) internal successors, (159), 8 states have internal predecessors, (159), 1 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106)