./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 254b993103fdf4bf9ce113a41b03b165c45b47461a75aeb8bd9480761428c91e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:06:37,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:06:37,529 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:06:37,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:06:37,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:06:37,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:06:37,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:06:37,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:06:37,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:06:37,568 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:06:37,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:06:37,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:06:37,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:06:37,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:06:37,572 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:06:37,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:06:37,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:06:37,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:06:37,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:06:37,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:06:37,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:06:37,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:06:37,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:06:37,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:06:37,577 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:06:37,577 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:06:37,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:06:37,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:06:37,578 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:06:37,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:06:37,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:06:37,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:06:37,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:06:37,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:06:37,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:06:37,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:06:37,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:06:37,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:06:37,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:06:37,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:06:37,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:06:37,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:06:37,583 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 254b993103fdf4bf9ce113a41b03b165c45b47461a75aeb8bd9480761428c91e [2024-11-16 09:06:37,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:06:37,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:06:37,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:06:37,874 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:06:37,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:06:37,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-2.c [2024-11-16 09:06:39,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:06:39,888 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:06:39,890 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-2.c [2024-11-16 09:06:39,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fafb6a65/591e940ddf2e444faf7124a23021d1ad/FLAGf55504ead [2024-11-16 09:06:39,957 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fafb6a65/591e940ddf2e444faf7124a23021d1ad [2024-11-16 09:06:39,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:06:39,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:06:39,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:06:39,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:06:39,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:06:39,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:06:39" (1/1) ... [2024-11-16 09:06:39,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6894caa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:39, skipping insertion in model container [2024-11-16 09:06:39,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:06:39" (1/1) ... [2024-11-16 09:06:40,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:06:41,884 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-2.c[378560,378573] [2024-11-16 09:06:41,960 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-2.c[383339,383352] [2024-11-16 09:06:42,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:06:42,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:06:43,015 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-2.c[378560,378573] [2024-11-16 09:06:43,028 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-2.c[383339,383352] [2024-11-16 09:06:43,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:06:43,106 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:06:43,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43 WrapperNode [2024-11-16 09:06:43,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:06:43,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:06:43,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:06:43,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:06:43,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:43,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:43,631 INFO L138 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12863 [2024-11-16 09:06:43,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:06:43,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:06:43,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:06:43,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:06:43,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:43,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:43,700 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:43,802 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]. [2024-11-16 09:06:43,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:43,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:44,041 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:44,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:44,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:44,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:44,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:06:44,214 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:06:44,214 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:06:44,215 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:06:44,215 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (1/1) ... [2024-11-16 09:06:44,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:06:44,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:44,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:06:44,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:06:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:06:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:06:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:06:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:06:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:06:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:06:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:06:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:06:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:06:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:06:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:06:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:06:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:06:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:06:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:06:44,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:06:44,426 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:06:44,428 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:06:51,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:06:51,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:06:51,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:06:51,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:06:51,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:06:51,985 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:06:51,985 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:06:52,211 INFO L? ?]: Removed 1719 outVars from TransFormulas that were not future-live. [2024-11-16 09:06:52,211 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:06:52,272 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:06:52,273 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:06:52,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:06:52 BoogieIcfgContainer [2024-11-16 09:06:52,273 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:06:52,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:06:52,276 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:06:52,279 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:06:52,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:06:39" (1/3) ... [2024-11-16 09:06:52,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de65a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:06:52, skipping insertion in model container [2024-11-16 09:06:52,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:43" (2/3) ... [2024-11-16 09:06:52,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de65a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:06:52, skipping insertion in model container [2024-11-16 09:06:52,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:06:52" (3/3) ... [2024-11-16 09:06:52,282 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.06.cil-2.c [2024-11-16 09:06:52,299 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:06:52,299 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:06:52,431 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:06:52,440 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;@237b416f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:06:52,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:06:52,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 2461 states, 2432 states have (on average 1.8351151315789473) internal successors, (4463), 2435 states have internal predecessors, (4463), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 09:06:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:06:52,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:52,479 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:52,480 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:52,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:52,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1552308627, now seen corresponding path program 1 times [2024-11-16 09:06:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:52,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316067299] [2024-11-16 09:06:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:06:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:06:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:06:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:06:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:53,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:53,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316067299] [2024-11-16 09:06:53,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316067299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:53,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:53,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:06:53,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220987057] [2024-11-16 09:06:53,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:53,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:06:53,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:53,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:06:53,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:06:53,264 INFO L87 Difference]: Start difference. First operand has 2461 states, 2432 states have (on average 1.8351151315789473) internal successors, (4463), 2435 states have internal predecessors, (4463), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:55,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:55,260 INFO L93 Difference]: Finished difference Result 5308 states and 9631 transitions. [2024-11-16 09:06:55,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:06:55,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:06:55,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:55,290 INFO L225 Difference]: With dead ends: 5308 [2024-11-16 09:06:55,291 INFO L226 Difference]: Without dead ends: 2789 [2024-11-16 09:06:55,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:55,304 INFO L432 NwaCegarLoop]: 4260 mSDtfsCounter, 4933 mSDsluCounter, 12806 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4946 SdHoareTripleChecker+Valid, 17066 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:55,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4946 Valid, 17066 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:06:55,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2024-11-16 09:06:55,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2637. [2024-11-16 09:06:55,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2587 states have (on average 1.7959025898724392) internal successors, (4646), 2590 states have internal predecessors, (4646), 35 states have call successors, (35), 12 states have call predecessors, (35), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2024-11-16 09:06:55,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 4719 transitions. [2024-11-16 09:06:55,491 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 4719 transitions. Word has length 117 [2024-11-16 09:06:55,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:55,492 INFO L471 AbstractCegarLoop]: Abstraction has 2637 states and 4719 transitions. [2024-11-16 09:06:55,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:55,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 4719 transitions. [2024-11-16 09:06:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:06:55,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:55,502 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:55,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:06:55,503 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:55,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1986377361, now seen corresponding path program 1 times [2024-11-16 09:06:55,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:55,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482106478] [2024-11-16 09:06:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:06:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:06:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:06:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:06:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:55,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:55,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482106478] [2024-11-16 09:06:55,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482106478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:55,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:55,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:55,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644043954] [2024-11-16 09:06:55,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:55,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:55,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:55,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:55,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:55,840 INFO L87 Difference]: Start difference. First operand 2637 states and 4719 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:57,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:57,049 INFO L93 Difference]: Finished difference Result 3298 states and 5733 transitions. [2024-11-16 09:06:57,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:06:57,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:06:57,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:57,064 INFO L225 Difference]: With dead ends: 3298 [2024-11-16 09:06:57,064 INFO L226 Difference]: Without dead ends: 2798 [2024-11-16 09:06:57,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:57,069 INFO L432 NwaCegarLoop]: 4174 mSDtfsCounter, 4726 mSDsluCounter, 12415 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4740 SdHoareTripleChecker+Valid, 16589 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:57,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4740 Valid, 16589 Invalid, 1019 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:06:57,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-16 09:06:57,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2637. [2024-11-16 09:06:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2587 states have (on average 1.795129493621956) internal successors, (4644), 2590 states have internal predecessors, (4644), 35 states have call successors, (35), 12 states have call predecessors, (35), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2024-11-16 09:06:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 4717 transitions. [2024-11-16 09:06:57,161 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 4717 transitions. Word has length 117 [2024-11-16 09:06:57,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:57,162 INFO L471 AbstractCegarLoop]: Abstraction has 2637 states and 4717 transitions. [2024-11-16 09:06:57,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:57,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 4717 transitions. [2024-11-16 09:06:57,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:06:57,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:57,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:57,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:06:57,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:57,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:57,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1793069486, now seen corresponding path program 1 times [2024-11-16 09:06:57,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:57,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820662465] [2024-11-16 09:06:57,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:57,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:06:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:06:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:06:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:06:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:57,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:57,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820662465] [2024-11-16 09:06:57,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820662465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:57,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:57,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:57,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047350578] [2024-11-16 09:06:57,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:57,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:57,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:57,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:57,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:57,433 INFO L87 Difference]: Start difference. First operand 2637 states and 4717 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:59,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:59,698 INFO L93 Difference]: Finished difference Result 3621 states and 6210 transitions. [2024-11-16 09:06:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:06:59,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:06:59,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:59,714 INFO L225 Difference]: With dead ends: 3621 [2024-11-16 09:06:59,715 INFO L226 Difference]: Without dead ends: 3121 [2024-11-16 09:06:59,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:06:59,719 INFO L432 NwaCegarLoop]: 4364 mSDtfsCounter, 4865 mSDsluCounter, 17253 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4878 SdHoareTripleChecker+Valid, 21617 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:59,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4878 Valid, 21617 Invalid, 2044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:06:59,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2024-11-16 09:06:59,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 2875. [2024-11-16 09:06:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2803 states have (on average 1.768105601141634) internal successors, (4956), 2807 states have internal predecessors, (4956), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2024-11-16 09:06:59,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 5061 transitions. [2024-11-16 09:06:59,808 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 5061 transitions. Word has length 117 [2024-11-16 09:06:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:59,809 INFO L471 AbstractCegarLoop]: Abstraction has 2875 states and 5061 transitions. [2024-11-16 09:06:59,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:59,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 5061 transitions. [2024-11-16 09:06:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:06:59,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:59,812 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:59,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:06:59,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:59,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:59,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1548696177, now seen corresponding path program 1 times [2024-11-16 09:06:59,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:59,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144754469] [2024-11-16 09:06:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:59,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:59,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:59,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:06:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:00,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:00,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144754469] [2024-11-16 09:07:00,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144754469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:00,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:00,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:00,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249468139] [2024-11-16 09:07:00,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:00,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:00,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:00,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:00,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:00,063 INFO L87 Difference]: Start difference. First operand 2875 states and 5061 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:02,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:02,219 INFO L93 Difference]: Finished difference Result 4487 states and 7500 transitions. [2024-11-16 09:07:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:02,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:02,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:02,239 INFO L225 Difference]: With dead ends: 4487 [2024-11-16 09:07:02,239 INFO L226 Difference]: Without dead ends: 3749 [2024-11-16 09:07:02,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:02,247 INFO L432 NwaCegarLoop]: 4362 mSDtfsCounter, 4863 mSDsluCounter, 17253 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 21615 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:02,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 21615 Invalid, 2034 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 09:07:02,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2024-11-16 09:07:02,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3353. [2024-11-16 09:07:02,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3353 states, 3237 states have (on average 1.7247451343836886) internal successors, (5583), 3243 states have internal predecessors, (5583), 80 states have call successors, (80), 30 states have call predecessors, (80), 34 states have return successors, (93), 83 states have call predecessors, (93), 80 states have call successors, (93) [2024-11-16 09:07:02,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3353 states to 3353 states and 5756 transitions. [2024-11-16 09:07:02,425 INFO L78 Accepts]: Start accepts. Automaton has 3353 states and 5756 transitions. Word has length 117 [2024-11-16 09:07:02,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:02,426 INFO L471 AbstractCegarLoop]: Abstraction has 3353 states and 5756 transitions. [2024-11-16 09:07:02,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:02,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3353 states and 5756 transitions. [2024-11-16 09:07:02,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:02,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:02,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:02,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:07:02,433 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:02,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:02,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1945735566, now seen corresponding path program 1 times [2024-11-16 09:07:02,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:02,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561891722] [2024-11-16 09:07:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:02,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:02,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:02,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:02,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:02,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:02,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:02,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561891722] [2024-11-16 09:07:02,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561891722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:02,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:02,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:02,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365401360] [2024-11-16 09:07:02,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:02,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:02,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:02,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:02,674 INFO L87 Difference]: Start difference. First operand 3353 states and 5756 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:04,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:04,788 INFO L93 Difference]: Finished difference Result 6167 states and 9991 transitions. [2024-11-16 09:07:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:04,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:04,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:04,812 INFO L225 Difference]: With dead ends: 6167 [2024-11-16 09:07:04,813 INFO L226 Difference]: Without dead ends: 4951 [2024-11-16 09:07:04,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:04,825 INFO L432 NwaCegarLoop]: 4362 mSDtfsCounter, 4859 mSDsluCounter, 17253 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 21615 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:04,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4872 Valid, 21615 Invalid, 2025 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:07:04,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4951 states. [2024-11-16 09:07:05,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4951 to 4311. [2024-11-16 09:07:05,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4311 states, 4107 states have (on average 1.6652057462868273) internal successors, (6839), 4117 states have internal predecessors, (6839), 140 states have call successors, (140), 54 states have call predecessors, (140), 62 states have return successors, (175), 147 states have call predecessors, (175), 140 states have call successors, (175) [2024-11-16 09:07:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 7154 transitions. [2024-11-16 09:07:05,122 INFO L78 Accepts]: Start accepts. Automaton has 4311 states and 7154 transitions. Word has length 117 [2024-11-16 09:07:05,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:05,123 INFO L471 AbstractCegarLoop]: Abstraction has 4311 states and 7154 transitions. [2024-11-16 09:07:05,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4311 states and 7154 transitions. [2024-11-16 09:07:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:05,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:05,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:05,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:07:05,128 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:05,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1820866129, now seen corresponding path program 1 times [2024-11-16 09:07:05,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:05,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975088526] [2024-11-16 09:07:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:05,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:05,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975088526] [2024-11-16 09:07:05,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975088526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:05,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:05,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:05,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909268362] [2024-11-16 09:07:05,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:05,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:05,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:05,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:05,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:05,363 INFO L87 Difference]: Start difference. First operand 4311 states and 7154 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:07,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:07,040 INFO L93 Difference]: Finished difference Result 9527 states and 14991 transitions. [2024-11-16 09:07:07,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:07,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:07,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:07,079 INFO L225 Difference]: With dead ends: 9527 [2024-11-16 09:07:07,079 INFO L226 Difference]: Without dead ends: 7353 [2024-11-16 09:07:07,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:07,092 INFO L432 NwaCegarLoop]: 4198 mSDtfsCounter, 4923 mSDsluCounter, 16755 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4936 SdHoareTripleChecker+Valid, 20953 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:07,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4936 Valid, 20953 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:07:07,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2024-11-16 09:07:07,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 6233. [2024-11-16 09:07:07,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6233 states, 5853 states have (on average 1.599009055185375) internal successors, (9359), 5871 states have internal predecessors, (9359), 260 states have call successors, (260), 102 states have call predecessors, (260), 118 states have return successors, (357), 275 states have call predecessors, (357), 260 states have call successors, (357) [2024-11-16 09:07:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6233 states to 6233 states and 9976 transitions. [2024-11-16 09:07:07,384 INFO L78 Accepts]: Start accepts. Automaton has 6233 states and 9976 transitions. Word has length 117 [2024-11-16 09:07:07,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:07,386 INFO L471 AbstractCegarLoop]: Abstraction has 6233 states and 9976 transitions. [2024-11-16 09:07:07,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:07,386 INFO L276 IsEmpty]: Start isEmpty. Operand 6233 states and 9976 transitions. [2024-11-16 09:07:07,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:07,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:07,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:07,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:07:07,393 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:07,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:07,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1798408558, now seen corresponding path program 1 times [2024-11-16 09:07:07,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:07,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261985347] [2024-11-16 09:07:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:07,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:07,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:07,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:07,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:07,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:07,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:07,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:07,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261985347] [2024-11-16 09:07:07,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261985347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:07,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:07,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:07,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34342262] [2024-11-16 09:07:07,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:07,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:07,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:07,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:07,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:07,591 INFO L87 Difference]: Start difference. First operand 6233 states and 9976 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:09,656 INFO L93 Difference]: Finished difference Result 16247 states and 25051 transitions. [2024-11-16 09:07:09,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:09,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:09,707 INFO L225 Difference]: With dead ends: 16247 [2024-11-16 09:07:09,708 INFO L226 Difference]: Without dead ends: 12151 [2024-11-16 09:07:09,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:09,728 INFO L432 NwaCegarLoop]: 4362 mSDtfsCounter, 4851 mSDsluCounter, 17253 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 21615 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:09,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 21615 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:07:09,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12151 states. [2024-11-16 09:07:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12151 to 10091. [2024-11-16 09:07:10,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10091 states, 9359 states have (on average 1.5406560529971152) internal successors, (14419), 9393 states have internal predecessors, (14419), 500 states have call successors, (500), 198 states have call predecessors, (500), 230 states have return successors, (775), 531 states have call predecessors, (775), 500 states have call successors, (775) [2024-11-16 09:07:10,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10091 states to 10091 states and 15694 transitions. [2024-11-16 09:07:10,186 INFO L78 Accepts]: Start accepts. Automaton has 10091 states and 15694 transitions. Word has length 117 [2024-11-16 09:07:10,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:10,187 INFO L471 AbstractCegarLoop]: Abstraction has 10091 states and 15694 transitions. [2024-11-16 09:07:10,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:10,188 INFO L276 IsEmpty]: Start isEmpty. Operand 10091 states and 15694 transitions. [2024-11-16 09:07:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:10,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:10,197 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:10,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:07:10,197 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:10,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:10,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1687071281, now seen corresponding path program 1 times [2024-11-16 09:07:10,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:10,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547320956] [2024-11-16 09:07:10,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:10,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:10,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:10,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:10,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:10,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:10,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:10,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:10,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:10,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547320956] [2024-11-16 09:07:10,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547320956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:10,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:10,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:10,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972891767] [2024-11-16 09:07:10,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:10,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:10,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:10,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:10,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:10,383 INFO L87 Difference]: Start difference. First operand 10091 states and 15694 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:13,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:13,068 INFO L93 Difference]: Finished difference Result 32663 states and 49845 transitions. [2024-11-16 09:07:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:07:13,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:13,175 INFO L225 Difference]: With dead ends: 32663 [2024-11-16 09:07:13,176 INFO L226 Difference]: Without dead ends: 24709 [2024-11-16 09:07:13,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:07:13,348 INFO L432 NwaCegarLoop]: 4360 mSDtfsCounter, 5099 mSDsluCounter, 17245 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5119 SdHoareTripleChecker+Valid, 21605 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:13,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5119 Valid, 21605 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:07:13,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24709 states. [2024-11-16 09:07:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24709 to 17741. [2024-11-16 09:07:14,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17741 states, 16337 states have (on average 1.5008263451062007) internal successors, (24519), 16403 states have internal predecessors, (24519), 948 states have call successors, (948), 390 states have call predecessors, (948), 454 states have return successors, (1741), 1011 states have call predecessors, (1741), 948 states have call successors, (1741) [2024-11-16 09:07:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17741 states to 17741 states and 27208 transitions. [2024-11-16 09:07:14,533 INFO L78 Accepts]: Start accepts. Automaton has 17741 states and 27208 transitions. Word has length 117 [2024-11-16 09:07:14,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:14,534 INFO L471 AbstractCegarLoop]: Abstraction has 17741 states and 27208 transitions. [2024-11-16 09:07:14,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 17741 states and 27208 transitions. [2024-11-16 09:07:14,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:14,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:14,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:14,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:07:14,554 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:14,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:14,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1245316786, now seen corresponding path program 1 times [2024-11-16 09:07:14,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:14,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576329469] [2024-11-16 09:07:14,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:14,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:14,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:14,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576329469] [2024-11-16 09:07:14,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576329469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:14,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:14,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:14,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069663746] [2024-11-16 09:07:14,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:14,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:14,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:14,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:14,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:14,729 INFO L87 Difference]: Start difference. First operand 17741 states and 27208 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:16,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:16,160 INFO L93 Difference]: Finished difference Result 37407 states and 57693 transitions. [2024-11-16 09:07:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:16,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:16,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:16,243 INFO L225 Difference]: With dead ends: 37407 [2024-11-16 09:07:16,244 INFO L226 Difference]: Without dead ends: 21803 [2024-11-16 09:07:16,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:16,296 INFO L432 NwaCegarLoop]: 4173 mSDtfsCounter, 4731 mSDsluCounter, 12413 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4745 SdHoareTripleChecker+Valid, 16586 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:16,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4745 Valid, 16586 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:07:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21803 states. [2024-11-16 09:07:17,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 17741. [2024-11-16 09:07:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17741 states, 16337 states have (on average 1.496847646446716) internal successors, (24454), 16403 states have internal predecessors, (24454), 948 states have call successors, (948), 390 states have call predecessors, (948), 454 states have return successors, (1741), 1011 states have call predecessors, (1741), 948 states have call successors, (1741) [2024-11-16 09:07:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17741 states to 17741 states and 27143 transitions. [2024-11-16 09:07:17,309 INFO L78 Accepts]: Start accepts. Automaton has 17741 states and 27143 transitions. Word has length 117 [2024-11-16 09:07:17,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:17,309 INFO L471 AbstractCegarLoop]: Abstraction has 17741 states and 27143 transitions. [2024-11-16 09:07:17,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:17,310 INFO L276 IsEmpty]: Start isEmpty. Operand 17741 states and 27143 transitions. [2024-11-16 09:07:17,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:17,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:17,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:17,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:07:17,326 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:17,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:17,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1231066641, now seen corresponding path program 1 times [2024-11-16 09:07:17,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:17,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185033844] [2024-11-16 09:07:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:17,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:17,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:17,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185033844] [2024-11-16 09:07:17,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185033844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:17,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:17,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:17,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373861903] [2024-11-16 09:07:17,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:17,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:17,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:17,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:17,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:17,495 INFO L87 Difference]: Start difference. First operand 17741 states and 27143 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:20,614 INFO L93 Difference]: Finished difference Result 60563 states and 92275 transitions. [2024-11-16 09:07:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:07:20,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:20,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:20,763 INFO L225 Difference]: With dead ends: 60563 [2024-11-16 09:07:20,763 INFO L226 Difference]: Without dead ends: 44959 [2024-11-16 09:07:20,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:07:20,964 INFO L432 NwaCegarLoop]: 4360 mSDtfsCounter, 5009 mSDsluCounter, 17245 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5029 SdHoareTripleChecker+Valid, 21605 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:20,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5029 Valid, 21605 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:07:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44959 states. [2024-11-16 09:07:23,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44959 to 33071. [2024-11-16 09:07:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33071 states, 30355 states have (on average 1.4720144951408334) internal successors, (44683), 30485 states have internal predecessors, (44683), 1812 states have call successors, (1812), 774 states have call predecessors, (1812), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2024-11-16 09:07:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33071 states to 33071 states and 50622 transitions. [2024-11-16 09:07:23,177 INFO L78 Accepts]: Start accepts. Automaton has 33071 states and 50622 transitions. Word has length 117 [2024-11-16 09:07:23,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:23,178 INFO L471 AbstractCegarLoop]: Abstraction has 33071 states and 50622 transitions. [2024-11-16 09:07:23,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:23,178 INFO L276 IsEmpty]: Start isEmpty. Operand 33071 states and 50622 transitions. [2024-11-16 09:07:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:23,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:23,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:23,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:07:23,209 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:23,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:23,210 INFO L85 PathProgramCache]: Analyzing trace with hash 260775634, now seen corresponding path program 1 times [2024-11-16 09:07:23,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:23,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524297959] [2024-11-16 09:07:23,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:23,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:23,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:23,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:23,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:23,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:23,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:23,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:23,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524297959] [2024-11-16 09:07:23,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524297959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:23,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:23,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:23,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178099544] [2024-11-16 09:07:23,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:23,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:23,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:23,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:23,525 INFO L87 Difference]: Start difference. First operand 33071 states and 50622 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:25,909 INFO L93 Difference]: Finished difference Result 71581 states and 111311 transitions. [2024-11-16 09:07:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:26,043 INFO L225 Difference]: With dead ends: 71581 [2024-11-16 09:07:26,044 INFO L226 Difference]: Without dead ends: 40647 [2024-11-16 09:07:26,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:26,109 INFO L432 NwaCegarLoop]: 4173 mSDtfsCounter, 4730 mSDsluCounter, 12413 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4744 SdHoareTripleChecker+Valid, 16586 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:26,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4744 Valid, 16586 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:07:26,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40647 states. [2024-11-16 09:07:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40647 to 33071. [2024-11-16 09:07:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33071 states, 30355 states have (on average 1.467764783396475) internal successors, (44554), 30485 states have internal predecessors, (44554), 1812 states have call successors, (1812), 774 states have call predecessors, (1812), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2024-11-16 09:07:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33071 states to 33071 states and 50493 transitions. [2024-11-16 09:07:28,286 INFO L78 Accepts]: Start accepts. Automaton has 33071 states and 50493 transitions. Word has length 117 [2024-11-16 09:07:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:28,286 INFO L471 AbstractCegarLoop]: Abstraction has 33071 states and 50493 transitions. [2024-11-16 09:07:28,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 33071 states and 50493 transitions. [2024-11-16 09:07:28,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:28,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:28,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:28,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:07:28,314 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:28,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:28,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1199307249, now seen corresponding path program 1 times [2024-11-16 09:07:28,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:28,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509930573] [2024-11-16 09:07:28,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:28,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:28,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:28,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:28,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:28,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:28,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:28,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:28,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:28,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509930573] [2024-11-16 09:07:28,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509930573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:28,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:28,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:28,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399704007] [2024-11-16 09:07:28,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:28,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:28,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:28,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:28,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:28,466 INFO L87 Difference]: Start difference. First operand 33071 states and 50493 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:31,204 INFO L93 Difference]: Finished difference Result 71450 states and 110663 transitions. [2024-11-16 09:07:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:31,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:31,347 INFO L225 Difference]: With dead ends: 71450 [2024-11-16 09:07:31,347 INFO L226 Difference]: Without dead ends: 40516 [2024-11-16 09:07:31,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:31,414 INFO L432 NwaCegarLoop]: 4173 mSDtfsCounter, 4728 mSDsluCounter, 12413 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 16586 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:31,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 16586 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:07:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40516 states. [2024-11-16 09:07:33,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40516 to 33071. [2024-11-16 09:07:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33071 states, 30355 states have (on average 1.4635150716521166) internal successors, (44425), 30485 states have internal predecessors, (44425), 1812 states have call successors, (1812), 774 states have call predecessors, (1812), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2024-11-16 09:07:33,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33071 states to 33071 states and 50364 transitions. [2024-11-16 09:07:33,647 INFO L78 Accepts]: Start accepts. Automaton has 33071 states and 50364 transitions. Word has length 117 [2024-11-16 09:07:33,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:33,647 INFO L471 AbstractCegarLoop]: Abstraction has 33071 states and 50364 transitions. [2024-11-16 09:07:33,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 33071 states and 50364 transitions. [2024-11-16 09:07:33,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:33,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:33,674 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:33,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:07:33,674 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:33,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:33,675 INFO L85 PathProgramCache]: Analyzing trace with hash 813940466, now seen corresponding path program 1 times [2024-11-16 09:07:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:33,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077361441] [2024-11-16 09:07:33,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:33,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:33,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:33,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077361441] [2024-11-16 09:07:33,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077361441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:33,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:33,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:33,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167460674] [2024-11-16 09:07:33,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:33,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:33,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:33,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:33,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:33,833 INFO L87 Difference]: Start difference. First operand 33071 states and 50364 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:39,677 INFO L93 Difference]: Finished difference Result 112169 states and 171814 transitions. [2024-11-16 09:07:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:07:39,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2024-11-16 09:07:39,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:39,876 INFO L225 Difference]: With dead ends: 112169 [2024-11-16 09:07:39,876 INFO L226 Difference]: Without dead ends: 81235 [2024-11-16 09:07:39,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:07:39,940 INFO L432 NwaCegarLoop]: 4360 mSDtfsCounter, 4872 mSDsluCounter, 17245 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 21605 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:39,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 21605 Invalid, 1904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:07:39,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81235 states. [2024-11-16 09:07:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81235 to 63919. [2024-11-16 09:07:43,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63919 states, 58643 states have (on average 1.448442269324557) internal successors, (84941), 58901 states have internal predecessors, (84941), 3476 states have call successors, (3476), 1542 states have call predecessors, (3476), 1798 states have return successors, (10293), 3731 states have call predecessors, (10293), 3476 states have call successors, (10293) [2024-11-16 09:07:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63919 states to 63919 states and 98710 transitions. [2024-11-16 09:07:43,762 INFO L78 Accepts]: Start accepts. Automaton has 63919 states and 98710 transitions. Word has length 117 [2024-11-16 09:07:43,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:43,762 INFO L471 AbstractCegarLoop]: Abstraction has 63919 states and 98710 transitions. [2024-11-16 09:07:43,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 63919 states and 98710 transitions. [2024-11-16 09:07:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 09:07:43,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:43,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:43,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:07:43,805 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:43,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:43,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1830890031, now seen corresponding path program 1 times [2024-11-16 09:07:43,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:43,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349661063] [2024-11-16 09:07:43,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:43,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:07:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:07:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:07:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:07:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:43,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:43,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349661063] [2024-11-16 09:07:43,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349661063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:43,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:43,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:43,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833808916] [2024-11-16 09:07:43,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:43,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:43,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:43,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:43,957 INFO L87 Difference]: Start difference. First operand 63919 states and 98710 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)