./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label48+token_ring.11.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_label48+token_ring.11.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 96b7f8eccd086f0147c8c722a1929f411803fa8c06f9cbde3c608e38cc4fa9b2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:18:32,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:18:32,338 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:18:32,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:18:32,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:18:32,370 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:18:32,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:18:32,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:18:32,372 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:18:32,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:18:32,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:18:32,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:18:32,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:18:32,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:18:32,375 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:18:32,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:18:32,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:18:32,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:18:32,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:18:32,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:18:32,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:18:32,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:18:32,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:18:32,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:18:32,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:18:32,379 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:18:32,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:18:32,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:18:32,380 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:18:32,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:18:32,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:18:32,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:18:32,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:18:32,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:18:32,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:18:32,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:18:32,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:18:32,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:18:32,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:18:32,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:18:32,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:18:32,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:18:32,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96b7f8eccd086f0147c8c722a1929f411803fa8c06f9cbde3c608e38cc4fa9b2 [2024-11-16 09:18:32,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:18:32,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:18:32,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:18:32,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:18:32,609 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:18:32,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label48+token_ring.11.cil-2.c [2024-11-16 09:18:33,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:18:34,457 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:18:34,458 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label48+token_ring.11.cil-2.c [2024-11-16 09:18:34,505 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0226f8186/7405d5597f8b4213a42781b8de5ab53f/FLAG4e61b21d9 [2024-11-16 09:18:34,987 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0226f8186/7405d5597f8b4213a42781b8de5ab53f [2024-11-16 09:18:34,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:18:34,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:18:34,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:18:34,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:18:34,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:18:34,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:18:34" (1/1) ... [2024-11-16 09:18:34,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6271387a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:34, skipping insertion in model container [2024-11-16 09:18:34,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:18:34" (1/1) ... [2024-11-16 09:18:35,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:18:36,601 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_label48+token_ring.11.cil-2.c[375709,375722] [2024-11-16 09:18:36,641 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_label48+token_ring.11.cil-2.c[383339,383352] [2024-11-16 09:18:36,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:18:36,871 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:18:37,607 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_label48+token_ring.11.cil-2.c[375709,375722] [2024-11-16 09:18:37,615 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_label48+token_ring.11.cil-2.c[383339,383352] [2024-11-16 09:18:37,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:18:37,681 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:18:37,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37 WrapperNode [2024-11-16 09:18:37,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:18:37,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:18:37,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:18:37,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:18:37,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:37,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,080 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13158 [2024-11-16 09:18:38,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:18:38,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:18:38,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:18:38,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:18:38,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,129 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,197 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 09:18:38,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,395 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,415 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:18:38,574 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:18:38,574 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:18:38,574 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:18:38,575 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (1/1) ... [2024-11-16 09:18:38,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:18:38,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:18:38,606 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 09:18:38,613 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 09:18:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:18:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:18:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:18:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:18:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:18:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:18:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:18:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:18:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:18:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:18:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:18:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:18:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:18:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:18:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:18:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:18:38,751 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:18:38,753 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:18:45,055 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:18:45,056 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:18:45,056 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:18:45,056 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:18:45,056 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:18:45,058 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:18:45,058 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:18:45,275 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-11-16 09:18:45,275 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:18:45,320 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:18:45,320 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:18:45,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:18:45 BoogieIcfgContainer [2024-11-16 09:18:45,321 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:18:45,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:18:45,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:18:45,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:18:45,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:18:34" (1/3) ... [2024-11-16 09:18:45,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507072a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:18:45, skipping insertion in model container [2024-11-16 09:18:45,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:18:37" (2/3) ... [2024-11-16 09:18:45,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507072a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:18:45, skipping insertion in model container [2024-11-16 09:18:45,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:18:45" (3/3) ... [2024-11-16 09:18:45,326 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.11.cil-2.c [2024-11-16 09:18:45,338 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:18:45,338 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:18:45,432 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:18:45,438 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;@132e2018, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:18:45,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:18:45,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 2611 states, 2577 states have (on average 1.8211098176173846) internal successors, (4693), 2580 states have internal predecessors, (4693), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-16 09:18:45,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:18:45,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:18:45,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:18:45,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:18:45,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:18:45,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1894820076, now seen corresponding path program 1 times [2024-11-16 09:18:45,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:18:45,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510098879] [2024-11-16 09:18:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:18:45,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:18:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:45,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:18:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:45,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:18:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:46,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:18:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:46,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:18:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:46,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:18:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:46,093 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 09:18:46,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:18:46,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510098879] [2024-11-16 09:18:46,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510098879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:18:46,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:18:46,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:18:46,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107555377] [2024-11-16 09:18:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:18:46,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:18:46,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:18:46,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:18:46,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:18:46,135 INFO L87 Difference]: Start difference. First operand has 2611 states, 2577 states have (on average 1.8211098176173846) internal successors, (4693), 2580 states have internal predecessors, (4693), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 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 09:18:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:18:48,626 INFO L93 Difference]: Finished difference Result 5858 states and 10531 transitions. [2024-11-16 09:18:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:18:48,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 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 172 [2024-11-16 09:18:48,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:18:48,657 INFO L225 Difference]: With dead ends: 5858 [2024-11-16 09:18:48,658 INFO L226 Difference]: Without dead ends: 3194 [2024-11-16 09:18:48,671 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 09:18:48,674 INFO L432 NwaCegarLoop]: 4380 mSDtfsCounter, 5528 mSDsluCounter, 13201 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5546 SdHoareTripleChecker+Valid, 17581 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:18:48,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5546 Valid, 17581 Invalid, 2202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [104 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:18:48,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2024-11-16 09:18:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2932. [2024-11-16 09:18:48,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2872 states have (on average 1.7708913649025069) internal successors, (5086), 2875 states have internal predecessors, (5086), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-16 09:18:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 5179 transitions. [2024-11-16 09:18:48,835 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 5179 transitions. Word has length 172 [2024-11-16 09:18:48,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:18:48,836 INFO L471 AbstractCegarLoop]: Abstraction has 2932 states and 5179 transitions. [2024-11-16 09:18:48,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 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 09:18:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 5179 transitions. [2024-11-16 09:18:48,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:18:48,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:18:48,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:18:48,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:18:48,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:18:48,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:18:48,842 INFO L85 PathProgramCache]: Analyzing trace with hash 760660882, now seen corresponding path program 1 times [2024-11-16 09:18:48,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:18:48,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341185199] [2024-11-16 09:18:48,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:18:48,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:18:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:48,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:18:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:49,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:18:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:49,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:18:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:49,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:18:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:49,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:18:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:49,228 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 09:18:49,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:18:49,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341185199] [2024-11-16 09:18:49,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341185199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:18:49,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:18:49,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:18:49,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250122657] [2024-11-16 09:18:49,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:18:49,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:18:49,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:18:49,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:18:49,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:18:49,232 INFO L87 Difference]: Start difference. First operand 2932 states and 5179 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:18:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:18:50,791 INFO L93 Difference]: Finished difference Result 4003 states and 6853 transitions. [2024-11-16 09:18:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:18:50,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:18:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:18:50,804 INFO L225 Difference]: With dead ends: 4003 [2024-11-16 09:18:50,805 INFO L226 Difference]: Without dead ends: 3213 [2024-11-16 09:18:50,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:18:50,808 INFO L432 NwaCegarLoop]: 4294 mSDtfsCounter, 5216 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5235 SdHoareTripleChecker+Valid, 17024 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:18:50,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5235 Valid, 17024 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:18:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3213 states. [2024-11-16 09:18:50,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3213 to 2932. [2024-11-16 09:18:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2872 states have (on average 1.7701949860724233) internal successors, (5084), 2875 states have internal predecessors, (5084), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-16 09:18:50,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 5177 transitions. [2024-11-16 09:18:50,885 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 5177 transitions. Word has length 172 [2024-11-16 09:18:50,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:18:50,886 INFO L471 AbstractCegarLoop]: Abstraction has 2932 states and 5177 transitions. [2024-11-16 09:18:50,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:18:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 5177 transitions. [2024-11-16 09:18:50,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:18:50,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:18:50,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:18:50,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:18:50,889 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:18:50,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:18:50,889 INFO L85 PathProgramCache]: Analyzing trace with hash 953592083, now seen corresponding path program 1 times [2024-11-16 09:18:50,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:18:50,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086925393] [2024-11-16 09:18:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:18:50,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:18:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:50,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:18:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:51,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:18:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:51,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:18:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:51,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:18:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:51,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:18:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:51,113 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 09:18:51,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:18:51,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086925393] [2024-11-16 09:18:51,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086925393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:18:51,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:18:51,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:18:51,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585230961] [2024-11-16 09:18:51,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:18:51,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:18:51,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:18:51,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:18:51,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:18:51,116 INFO L87 Difference]: Start difference. First operand 2932 states and 5177 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:18:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:18:54,882 INFO L93 Difference]: Finished difference Result 4531 states and 7660 transitions. [2024-11-16 09:18:54,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:18:54,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:18:54,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:18:54,917 INFO L225 Difference]: With dead ends: 4531 [2024-11-16 09:18:54,917 INFO L226 Difference]: Without dead ends: 3741 [2024-11-16 09:18:54,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:18:54,929 INFO L432 NwaCegarLoop]: 4584 mSDtfsCounter, 5480 mSDsluCounter, 18073 mSDsCounter, 0 mSdLazyCounter, 3310 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5498 SdHoareTripleChecker+Valid, 22657 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:18:54,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5498 Valid, 22657 Invalid, 3369 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 3310 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 09:18:54,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2024-11-16 09:18:55,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3310. [2024-11-16 09:18:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3310 states, 3223 states have (on average 1.7378219050574) internal successors, (5601), 3227 states have internal predecessors, (5601), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-16 09:18:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3310 states to 3310 states and 5736 transitions. [2024-11-16 09:18:55,181 INFO L78 Accepts]: Start accepts. Automaton has 3310 states and 5736 transitions. Word has length 172 [2024-11-16 09:18:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:18:55,181 INFO L471 AbstractCegarLoop]: Abstraction has 3310 states and 5736 transitions. [2024-11-16 09:18:55,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:18:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3310 states and 5736 transitions. [2024-11-16 09:18:55,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:18:55,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:18:55,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:18:55,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:18:55,185 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:18:55,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:18:55,186 INFO L85 PathProgramCache]: Analyzing trace with hash 821268338, now seen corresponding path program 1 times [2024-11-16 09:18:55,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:18:55,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466196913] [2024-11-16 09:18:55,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:18:55,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:18:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:55,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:18:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:55,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:18:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:55,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:18:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:55,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:18:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:55,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:18:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:55,812 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 09:18:55,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:18:55,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466196913] [2024-11-16 09:18:55,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466196913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:18:55,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:18:55,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:18:55,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159030828] [2024-11-16 09:18:55,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:18:55,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:18:55,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:18:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:18:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:18:55,819 INFO L87 Difference]: Start difference. First operand 3310 states and 5736 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:18:58,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:18:58,894 INFO L93 Difference]: Finished difference Result 5937 states and 9805 transitions. [2024-11-16 09:18:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:18:58,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:18:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:18:58,913 INFO L225 Difference]: With dead ends: 5937 [2024-11-16 09:18:58,913 INFO L226 Difference]: Without dead ends: 4769 [2024-11-16 09:18:58,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:18:58,920 INFO L432 NwaCegarLoop]: 4582 mSDtfsCounter, 5478 mSDsluCounter, 18073 mSDsCounter, 0 mSdLazyCounter, 3298 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5496 SdHoareTripleChecker+Valid, 22655 SdHoareTripleChecker+Invalid, 3359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:18:58,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5496 Valid, 22655 Invalid, 3359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3298 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 09:18:58,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2024-11-16 09:18:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4068. [2024-11-16 09:18:59,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4068 states, 3927 states have (on average 1.690348866819455) internal successors, (6638), 3933 states have internal predecessors, (6638), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-11-16 09:18:59,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4068 states to 4068 states and 6861 transitions. [2024-11-16 09:18:59,103 INFO L78 Accepts]: Start accepts. Automaton has 4068 states and 6861 transitions. Word has length 172 [2024-11-16 09:18:59,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:18:59,103 INFO L471 AbstractCegarLoop]: Abstraction has 4068 states and 6861 transitions. [2024-11-16 09:18:59,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:18:59,104 INFO L276 IsEmpty]: Start isEmpty. Operand 4068 states and 6861 transitions. [2024-11-16 09:18:59,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:18:59,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:18:59,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:18:59,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:18:59,107 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:18:59,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:18:59,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1786831155, now seen corresponding path program 1 times [2024-11-16 09:18:59,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:18:59,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193418590] [2024-11-16 09:18:59,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:18:59,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:18:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:59,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:18:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:59,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:18:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:59,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:18:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:59,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:18:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:59,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:18:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:18:59,327 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 09:18:59,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:18:59,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193418590] [2024-11-16 09:18:59,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193418590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:18:59,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:18:59,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:18:59,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461857280] [2024-11-16 09:18:59,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:18:59,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:18:59,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:18:59,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:18:59,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:18:59,331 INFO L87 Difference]: Start difference. First operand 4068 states and 6861 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:02,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:02,440 INFO L93 Difference]: Finished difference Result 8657 states and 13926 transitions. [2024-11-16 09:19:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:02,461 INFO L225 Difference]: With dead ends: 8657 [2024-11-16 09:19:02,461 INFO L226 Difference]: Without dead ends: 6731 [2024-11-16 09:19:02,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:02,468 INFO L432 NwaCegarLoop]: 4582 mSDtfsCounter, 5474 mSDsluCounter, 18073 mSDsCounter, 0 mSdLazyCounter, 3289 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5492 SdHoareTripleChecker+Valid, 22655 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:02,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5492 Valid, 22655 Invalid, 3350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3289 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 09:19:02,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6731 states. [2024-11-16 09:19:02,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6731 to 5586. [2024-11-16 09:19:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5586 states, 5337 states have (on average 1.6327524826681656) internal successors, (8714), 5347 states have internal predecessors, (8714), 185 states have call successors, (185), 54 states have call predecessors, (185), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-11-16 09:19:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5586 states to 5586 states and 9119 transitions. [2024-11-16 09:19:02,627 INFO L78 Accepts]: Start accepts. Automaton has 5586 states and 9119 transitions. Word has length 172 [2024-11-16 09:19:02,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:02,628 INFO L471 AbstractCegarLoop]: Abstraction has 5586 states and 9119 transitions. [2024-11-16 09:19:02,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:02,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5586 states and 9119 transitions. [2024-11-16 09:19:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:02,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:02,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:02,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:19:02,632 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:02,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1125241682, now seen corresponding path program 1 times [2024-11-16 09:19:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:02,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582929327] [2024-11-16 09:19:02,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:02,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:02,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:02,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:02,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:02,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:02,865 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 09:19:02,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:02,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582929327] [2024-11-16 09:19:02,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582929327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:02,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:02,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:02,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441492295] [2024-11-16 09:19:02,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:02,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:02,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:02,867 INFO L87 Difference]: Start difference. First operand 5586 states and 9119 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:06,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:06,467 INFO L93 Difference]: Finished difference Result 14097 states and 22186 transitions. [2024-11-16 09:19:06,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:06,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:06,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:06,509 INFO L225 Difference]: With dead ends: 14097 [2024-11-16 09:19:06,509 INFO L226 Difference]: Without dead ends: 10653 [2024-11-16 09:19:06,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:06,520 INFO L432 NwaCegarLoop]: 4582 mSDtfsCounter, 5476 mSDsluCounter, 18073 mSDsCounter, 0 mSdLazyCounter, 3275 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5494 SdHoareTripleChecker+Valid, 22655 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:06,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5494 Valid, 22655 Invalid, 3336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3275 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 09:19:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10653 states. [2024-11-16 09:19:06,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10653 to 8628. [2024-11-16 09:19:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8163 states have (on average 1.577116256278329) internal successors, (12874), 8181 states have internal predecessors, (12874), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-16 09:19:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 13661 transitions. [2024-11-16 09:19:06,792 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 13661 transitions. Word has length 172 [2024-11-16 09:19:06,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:06,792 INFO L471 AbstractCegarLoop]: Abstraction has 8628 states and 13661 transitions. [2024-11-16 09:19:06,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:06,793 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 13661 transitions. [2024-11-16 09:19:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:06,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:06,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:06,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:19:06,799 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:06,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:06,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2073731411, now seen corresponding path program 1 times [2024-11-16 09:19:06,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:06,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247494352] [2024-11-16 09:19:06,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:06,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:06,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:06,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:06,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:07,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:07,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:07,012 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 09:19:07,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:07,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247494352] [2024-11-16 09:19:07,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247494352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:07,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:07,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:07,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546339574] [2024-11-16 09:19:07,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:07,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:07,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:07,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:07,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:07,016 INFO L87 Difference]: Start difference. First operand 8628 states and 13661 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:08,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:08,929 INFO L93 Difference]: Finished difference Result 17218 states and 26954 transitions. [2024-11-16 09:19:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:08,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:08,955 INFO L225 Difference]: With dead ends: 17218 [2024-11-16 09:19:08,955 INFO L226 Difference]: Without dead ends: 10732 [2024-11-16 09:19:08,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:08,972 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5071 mSDsluCounter, 16926 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5090 SdHoareTripleChecker+Valid, 21219 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:08,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5090 Valid, 21219 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:19:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10732 states. [2024-11-16 09:19:09,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10732 to 8628. [2024-11-16 09:19:09,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8163 states have (on average 1.5750336885948792) internal successors, (12857), 8181 states have internal predecessors, (12857), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-16 09:19:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 13644 transitions. [2024-11-16 09:19:09,237 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 13644 transitions. Word has length 172 [2024-11-16 09:19:09,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:09,237 INFO L471 AbstractCegarLoop]: Abstraction has 8628 states and 13644 transitions. [2024-11-16 09:19:09,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:09,237 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 13644 transitions. [2024-11-16 09:19:09,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:09,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:09,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:09,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:19:09,242 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:09,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash 139525012, now seen corresponding path program 1 times [2024-11-16 09:19:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:09,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354930355] [2024-11-16 09:19:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:09,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:09,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:09,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:09,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:09,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:09,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:09,456 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 09:19:09,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:09,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354930355] [2024-11-16 09:19:09,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354930355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:09,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:09,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:09,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387508148] [2024-11-16 09:19:09,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:09,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:09,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:09,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:09,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:09,458 INFO L87 Difference]: Start difference. First operand 8628 states and 13644 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:11,084 INFO L93 Difference]: Finished difference Result 17200 states and 26867 transitions. [2024-11-16 09:19:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:11,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:11,110 INFO L225 Difference]: With dead ends: 17200 [2024-11-16 09:19:11,110 INFO L226 Difference]: Without dead ends: 10714 [2024-11-16 09:19:11,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:11,127 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5223 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5242 SdHoareTripleChecker+Valid, 17023 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:11,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5242 Valid, 17023 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:19:11,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2024-11-16 09:19:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 8628. [2024-11-16 09:19:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8163 states have (on average 1.5729511209114295) internal successors, (12840), 8181 states have internal predecessors, (12840), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-16 09:19:11,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 13627 transitions. [2024-11-16 09:19:11,385 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 13627 transitions. Word has length 172 [2024-11-16 09:19:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:11,385 INFO L471 AbstractCegarLoop]: Abstraction has 8628 states and 13627 transitions. [2024-11-16 09:19:11,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 13627 transitions. [2024-11-16 09:19:11,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:11,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:11,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:11,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:19:11,391 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:11,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:11,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2016793907, now seen corresponding path program 1 times [2024-11-16 09:19:11,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:11,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037030524] [2024-11-16 09:19:11,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:11,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:11,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:11,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:11,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:11,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:11,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:11,726 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 09:19:11,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:11,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037030524] [2024-11-16 09:19:11,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037030524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:11,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:11,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:11,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200133197] [2024-11-16 09:19:11,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:11,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:11,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:11,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:11,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:11,728 INFO L87 Difference]: Start difference. First operand 8628 states and 13627 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:15,172 INFO L93 Difference]: Finished difference Result 24925 states and 38496 transitions. [2024-11-16 09:19:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:15,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:15,217 INFO L225 Difference]: With dead ends: 24925 [2024-11-16 09:19:15,217 INFO L226 Difference]: Without dead ends: 18439 [2024-11-16 09:19:15,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:15,235 INFO L432 NwaCegarLoop]: 4582 mSDtfsCounter, 5458 mSDsluCounter, 18073 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5476 SdHoareTripleChecker+Valid, 22655 SdHoareTripleChecker+Invalid, 3258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:15,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5476 Valid, 22655 Invalid, 3258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 09:19:15,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18439 states. [2024-11-16 09:19:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18439 to 14777. [2024-11-16 09:19:15,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14777 states, 13880 states have (on average 1.5286743515850143) internal successors, (21218), 13914 states have internal predecessors, (21218), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-16 09:19:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14777 states to 14777 states and 22823 transitions. [2024-11-16 09:19:15,879 INFO L78 Accepts]: Start accepts. Automaton has 14777 states and 22823 transitions. Word has length 172 [2024-11-16 09:19:15,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:15,880 INFO L471 AbstractCegarLoop]: Abstraction has 14777 states and 22823 transitions. [2024-11-16 09:19:15,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:15,880 INFO L276 IsEmpty]: Start isEmpty. Operand 14777 states and 22823 transitions. [2024-11-16 09:19:15,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:15,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:15,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:15,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:19:15,887 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:15,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:15,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1938803636, now seen corresponding path program 1 times [2024-11-16 09:19:15,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:15,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733839489] [2024-11-16 09:19:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:15,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:15,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:15,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:16,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:16,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:16,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:16,051 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 09:19:16,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:16,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733839489] [2024-11-16 09:19:16,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733839489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:16,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:16,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:16,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110969998] [2024-11-16 09:19:16,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:16,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:16,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:16,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:16,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:16,053 INFO L87 Difference]: Start difference. First operand 14777 states and 22823 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:18,037 INFO L93 Difference]: Finished difference Result 31254 states and 48258 transitions. [2024-11-16 09:19:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:18,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:18,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:18,083 INFO L225 Difference]: With dead ends: 31254 [2024-11-16 09:19:18,083 INFO L226 Difference]: Without dead ends: 18619 [2024-11-16 09:19:18,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:18,113 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5068 mSDsluCounter, 16926 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 21219 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:18,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5087 Valid, 21219 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:19:18,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18619 states. [2024-11-16 09:19:18,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18619 to 14777. [2024-11-16 09:19:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14777 states, 13880 states have (on average 1.5262968299711817) internal successors, (21185), 13914 states have internal predecessors, (21185), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-16 09:19:18,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14777 states to 14777 states and 22790 transitions. [2024-11-16 09:19:18,635 INFO L78 Accepts]: Start accepts. Automaton has 14777 states and 22790 transitions. Word has length 172 [2024-11-16 09:19:18,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:18,636 INFO L471 AbstractCegarLoop]: Abstraction has 14777 states and 22790 transitions. [2024-11-16 09:19:18,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand 14777 states and 22790 transitions. [2024-11-16 09:19:18,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:18,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:18,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:18,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:19:18,644 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:18,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash -3374829, now seen corresponding path program 1 times [2024-11-16 09:19:18,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:18,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818433094] [2024-11-16 09:19:18,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:18,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:18,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:18,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:18,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:18,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:18,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:18,827 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 09:19:18,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:18,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818433094] [2024-11-16 09:19:18,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818433094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:18,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:18,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:18,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416854873] [2024-11-16 09:19:18,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:18,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:18,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:18,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:18,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:18,829 INFO L87 Difference]: Start difference. First operand 14777 states and 22790 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:20,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:20,739 INFO L93 Difference]: Finished difference Result 31220 states and 48091 transitions. [2024-11-16 09:19:20,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:20,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:20,786 INFO L225 Difference]: With dead ends: 31220 [2024-11-16 09:19:20,786 INFO L226 Difference]: Without dead ends: 18585 [2024-11-16 09:19:20,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:20,813 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5220 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5239 SdHoareTripleChecker+Valid, 17023 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:20,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5239 Valid, 17023 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:19:20,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18585 states. [2024-11-16 09:19:21,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18585 to 14777. [2024-11-16 09:19:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14777 states, 13880 states have (on average 1.5239193083573488) internal successors, (21152), 13914 states have internal predecessors, (21152), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-16 09:19:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14777 states to 14777 states and 22757 transitions. [2024-11-16 09:19:21,326 INFO L78 Accepts]: Start accepts. Automaton has 14777 states and 22757 transitions. Word has length 172 [2024-11-16 09:19:21,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:21,328 INFO L471 AbstractCegarLoop]: Abstraction has 14777 states and 22757 transitions. [2024-11-16 09:19:21,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:21,329 INFO L276 IsEmpty]: Start isEmpty. Operand 14777 states and 22757 transitions. [2024-11-16 09:19:21,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:21,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:21,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:21,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:19:21,336 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:21,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:21,336 INFO L85 PathProgramCache]: Analyzing trace with hash -897309740, now seen corresponding path program 1 times [2024-11-16 09:19:21,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:21,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477190974] [2024-11-16 09:19:21,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:21,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:21,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:21,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:21,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:21,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:21,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:21,594 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 09:19:21,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:21,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477190974] [2024-11-16 09:19:21,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477190974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:21,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:21,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:21,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110775912] [2024-11-16 09:19:21,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:21,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:21,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:21,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:21,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:21,595 INFO L87 Difference]: Start difference. First operand 14777 states and 22757 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:25,996 INFO L93 Difference]: Finished difference Result 51838 states and 79204 transitions. [2024-11-16 09:19:25,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:19:25,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:25,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:26,087 INFO L225 Difference]: With dead ends: 51838 [2024-11-16 09:19:26,088 INFO L226 Difference]: Without dead ends: 39203 [2024-11-16 09:19:26,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:19:26,114 INFO L432 NwaCegarLoop]: 4580 mSDtfsCounter, 5890 mSDsluCounter, 18065 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5920 SdHoareTripleChecker+Valid, 22645 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:26,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5920 Valid, 22645 Invalid, 3191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 3127 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 09:19:26,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39203 states. [2024-11-16 09:19:27,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39203 to 27070. [2024-11-16 09:19:27,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27070 states, 25341 states have (on average 1.4948897044315537) internal successors, (37882), 25407 states have internal predecessors, (37882), 1273 states have call successors, (1273), 390 states have call predecessors, (1273), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-11-16 09:19:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27070 states to 27070 states and 41221 transitions. [2024-11-16 09:19:27,347 INFO L78 Accepts]: Start accepts. Automaton has 27070 states and 41221 transitions. Word has length 172 [2024-11-16 09:19:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:27,347 INFO L471 AbstractCegarLoop]: Abstraction has 27070 states and 41221 transitions. [2024-11-16 09:19:27,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 27070 states and 41221 transitions. [2024-11-16 09:19:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:27,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:27,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:27,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:19:27,362 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:27,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash 182232307, now seen corresponding path program 1 times [2024-11-16 09:19:27,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:27,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849065259] [2024-11-16 09:19:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:27,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:27,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:27,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:27,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:27,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:27,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:27,534 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 09:19:27,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849065259] [2024-11-16 09:19:27,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849065259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:27,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:27,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:27,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490512477] [2024-11-16 09:19:27,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:27,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:27,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:27,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:27,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:27,536 INFO L87 Difference]: Start difference. First operand 27070 states and 41221 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:29,989 INFO L93 Difference]: Finished difference Result 59130 states and 90774 transitions. [2024-11-16 09:19:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:29,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:29,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:30,085 INFO L225 Difference]: With dead ends: 59130 [2024-11-16 09:19:30,085 INFO L226 Difference]: Without dead ends: 34202 [2024-11-16 09:19:30,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:30,128 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5223 mSDsluCounter, 12728 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5242 SdHoareTripleChecker+Valid, 17021 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:30,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5242 Valid, 17021 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:19:30,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34202 states. [2024-11-16 09:19:31,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34202 to 27070. [2024-11-16 09:19:31,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27070 states, 25341 states have (on average 1.4923246912118702) internal successors, (37817), 25407 states have internal predecessors, (37817), 1273 states have call successors, (1273), 390 states have call predecessors, (1273), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-11-16 09:19:31,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27070 states to 27070 states and 41156 transitions. [2024-11-16 09:19:31,413 INFO L78 Accepts]: Start accepts. Automaton has 27070 states and 41156 transitions. Word has length 172 [2024-11-16 09:19:31,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:31,413 INFO L471 AbstractCegarLoop]: Abstraction has 27070 states and 41156 transitions. [2024-11-16 09:19:31,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:31,414 INFO L276 IsEmpty]: Start isEmpty. Operand 27070 states and 41156 transitions. [2024-11-16 09:19:31,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:31,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:31,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:31,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:19:31,427 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:31,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:31,427 INFO L85 PathProgramCache]: Analyzing trace with hash 217056244, now seen corresponding path program 1 times [2024-11-16 09:19:31,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:31,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510872370] [2024-11-16 09:19:31,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:31,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:31,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:31,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:31,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:31,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:31,589 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 09:19:31,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:31,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510872370] [2024-11-16 09:19:31,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510872370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:31,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:31,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:31,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471321984] [2024-11-16 09:19:31,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:31,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:31,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:31,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:31,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:31,591 INFO L87 Difference]: Start difference. First operand 27070 states and 41156 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:34,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:34,400 INFO L93 Difference]: Finished difference Result 58998 states and 90315 transitions. [2024-11-16 09:19:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:34,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:34,493 INFO L225 Difference]: With dead ends: 58998 [2024-11-16 09:19:34,493 INFO L226 Difference]: Without dead ends: 34070 [2024-11-16 09:19:34,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:34,541 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5065 mSDsluCounter, 16924 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5084 SdHoareTripleChecker+Valid, 21217 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:34,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5084 Valid, 21217 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:19:34,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34070 states. [2024-11-16 09:19:35,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34070 to 27070. [2024-11-16 09:19:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27070 states, 25341 states have (on average 1.4897596779921867) internal successors, (37752), 25407 states have internal predecessors, (37752), 1273 states have call successors, (1273), 390 states have call predecessors, (1273), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-11-16 09:19:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27070 states to 27070 states and 41091 transitions. [2024-11-16 09:19:35,974 INFO L78 Accepts]: Start accepts. Automaton has 27070 states and 41091 transitions. Word has length 172 [2024-11-16 09:19:35,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:35,974 INFO L471 AbstractCegarLoop]: Abstraction has 27070 states and 41091 transitions. [2024-11-16 09:19:35,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 27070 states and 41091 transitions. [2024-11-16 09:19:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:35,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:35,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:35,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:19:35,987 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:35,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1230950603, now seen corresponding path program 1 times [2024-11-16 09:19:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:35,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691713599] [2024-11-16 09:19:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:35,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:36,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:36,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:36,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:36,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:36,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:36,223 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 09:19:36,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:36,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691713599] [2024-11-16 09:19:36,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691713599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:36,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:36,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592654547] [2024-11-16 09:19:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:36,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:36,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:36,226 INFO L87 Difference]: Start difference. First operand 27070 states and 41091 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:38,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:38,688 INFO L93 Difference]: Finished difference Result 58932 states and 89988 transitions. [2024-11-16 09:19:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:38,766 INFO L225 Difference]: With dead ends: 58932 [2024-11-16 09:19:38,766 INFO L226 Difference]: Without dead ends: 34004 [2024-11-16 09:19:38,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:38,803 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5217 mSDsluCounter, 12728 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 17021 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:38,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 17021 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:19:38,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34004 states. [2024-11-16 09:19:40,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34004 to 27070. [2024-11-16 09:19:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27070 states, 25341 states have (on average 1.487194664772503) internal successors, (37687), 25407 states have internal predecessors, (37687), 1273 states have call successors, (1273), 390 states have call predecessors, (1273), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-11-16 09:19:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27070 states to 27070 states and 41026 transitions. [2024-11-16 09:19:40,089 INFO L78 Accepts]: Start accepts. Automaton has 27070 states and 41026 transitions. Word has length 172 [2024-11-16 09:19:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:40,090 INFO L471 AbstractCegarLoop]: Abstraction has 27070 states and 41026 transitions. [2024-11-16 09:19:40,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand 27070 states and 41026 transitions. [2024-11-16 09:19:40,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:40,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:40,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:40,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:19:40,103 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:40,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:40,103 INFO L85 PathProgramCache]: Analyzing trace with hash 107812820, now seen corresponding path program 1 times [2024-11-16 09:19:40,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:40,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658846745] [2024-11-16 09:19:40,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:40,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,332 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 09:19:40,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:40,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658846745] [2024-11-16 09:19:40,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658846745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:40,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:40,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:40,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937286227] [2024-11-16 09:19:40,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:40,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:40,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:40,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:40,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:40,338 INFO L87 Difference]: Start difference. First operand 27070 states and 41026 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:46,464 INFO L93 Difference]: Finished difference Result 95741 states and 145598 transitions. [2024-11-16 09:19:46,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:19:46,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:46,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:46,643 INFO L225 Difference]: With dead ends: 95741 [2024-11-16 09:19:46,643 INFO L226 Difference]: Without dead ends: 70813 [2024-11-16 09:19:46,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:19:46,698 INFO L432 NwaCegarLoop]: 4580 mSDtfsCounter, 5675 mSDsluCounter, 18065 mSDsCounter, 0 mSdLazyCounter, 3020 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5705 SdHoareTripleChecker+Valid, 22645 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:46,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5705 Valid, 22645 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3020 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 09:19:46,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70813 states. [2024-11-16 09:19:49,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70813 to 51879. [2024-11-16 09:19:49,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51879 states, 48518 states have (on average 1.4696607444659715) internal successors, (71305), 48648 states have internal predecessors, (71305), 2457 states have call successors, (2457), 774 states have call predecessors, (2457), 902 states have return successors, (4772), 2584 states have call predecessors, (4772), 2457 states have call successors, (4772) [2024-11-16 09:19:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51879 states to 51879 states and 78534 transitions. [2024-11-16 09:19:49,535 INFO L78 Accepts]: Start accepts. Automaton has 51879 states and 78534 transitions. Word has length 172 [2024-11-16 09:19:49,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:49,536 INFO L471 AbstractCegarLoop]: Abstraction has 51879 states and 78534 transitions. [2024-11-16 09:19:49,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:49,536 INFO L276 IsEmpty]: Start isEmpty. Operand 51879 states and 78534 transitions. [2024-11-16 09:19:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:49,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:49,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:49,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:19:49,580 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:49,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:49,580 INFO L85 PathProgramCache]: Analyzing trace with hash 289546069, now seen corresponding path program 1 times [2024-11-16 09:19:49,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:49,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12435426] [2024-11-16 09:19:49,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:49,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:19:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:19:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:19:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,868 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 09:19:49,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:49,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12435426] [2024-11-16 09:19:49,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12435426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:49,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:49,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:49,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13191425] [2024-11-16 09:19:49,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:49,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:49,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:49,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:49,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:49,870 INFO L87 Difference]: Start difference. First operand 51879 states and 78534 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:54,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:54,966 INFO L93 Difference]: Finished difference Result 114562 states and 175699 transitions. [2024-11-16 09:19:54,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:54,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 172 [2024-11-16 09:19:54,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:55,129 INFO L225 Difference]: With dead ends: 114562 [2024-11-16 09:19:55,130 INFO L226 Difference]: Without dead ends: 64825 [2024-11-16 09:19:55,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:55,203 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5062 mSDsluCounter, 16924 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5081 SdHoareTripleChecker+Valid, 21217 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:55,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5081 Valid, 21217 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:19:55,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64825 states. [2024-11-16 09:19:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64825 to 51879. [2024-11-16 09:19:57,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51879 states, 48518 states have (on average 1.4670019374252854) internal successors, (71176), 48648 states have internal predecessors, (71176), 2457 states have call successors, (2457), 774 states have call predecessors, (2457), 902 states have return successors, (4772), 2584 states have call predecessors, (4772), 2457 states have call successors, (4772) [2024-11-16 09:19:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51879 states to 51879 states and 78405 transitions. [2024-11-16 09:19:58,147 INFO L78 Accepts]: Start accepts. Automaton has 51879 states and 78405 transitions. Word has length 172 [2024-11-16 09:19:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:58,152 INFO L471 AbstractCegarLoop]: Abstraction has 51879 states and 78405 transitions. [2024-11-16 09:19:58,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:19:58,152 INFO L276 IsEmpty]: Start isEmpty. Operand 51879 states and 78405 transitions. [2024-11-16 09:19:58,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:19:58,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:58,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:19:58,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:19:58,193 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:58,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:58,193 INFO L85 PathProgramCache]: Analyzing trace with hash 433955764, now seen corresponding path program 1 times [2024-11-16 09:19:58,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:58,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025056966] [2024-11-16 09:19:58,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:58,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:19:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat