./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.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_label43+token_ring.08.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 343a266e04a35949615e598ecd53205cd1ef95f44fcd29af6bf4976fff243198 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:09:16,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:09:16,337 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:09:16,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:09:16,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:09:16,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:09:16,379 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:09:16,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:09:16,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:09:16,382 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:09:16,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:09:16,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:09:16,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:09:16,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:09:16,385 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:09:16,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:09:16,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:09:16,386 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:09:16,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:09:16,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:09:16,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:09:16,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:09:16,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:09:16,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:09:16,392 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:09:16,392 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:09:16,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:09:16,393 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:09:16,393 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:09:16,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:09:16,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:09:16,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:09:16,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:09:16,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:09:16,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:09:16,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:09:16,395 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:09:16,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:09:16,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:09:16,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:09:16,397 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:09:16,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:09:16,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343a266e04a35949615e598ecd53205cd1ef95f44fcd29af6bf4976fff243198 [2024-11-16 09:09:16,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:09:16,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:09:16,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:09:16,690 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:09:16,691 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:09:16,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-2.c [2024-11-16 09:09:18,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:09:18,845 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:09:18,847 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-2.c [2024-11-16 09:09:18,918 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e785ee7/501b676c25194b718eafe329e9ac876d/FLAG292950112 [2024-11-16 09:09:18,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e785ee7/501b676c25194b718eafe329e9ac876d [2024-11-16 09:09:18,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:09:18,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:09:18,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:09:18,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:09:18,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:09:18,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:09:18" (1/1) ... [2024-11-16 09:09:18,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402edd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:18, skipping insertion in model container [2024-11-16 09:09:18,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:09:18" (1/1) ... [2024-11-16 09:09:19,159 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:09:20,764 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_label43+token_ring.08.cil-2.c[381679,381692] [2024-11-16 09:09:20,790 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_label43+token_ring.08.cil-2.c[383339,383352] [2024-11-16 09:09:21,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:09:21,050 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:09:21,943 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_label43+token_ring.08.cil-2.c[381679,381692] [2024-11-16 09:09:21,949 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_label43+token_ring.08.cil-2.c[383339,383352] [2024-11-16 09:09:21,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:09:22,039 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:09:22,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22 WrapperNode [2024-11-16 09:09:22,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:09:22,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:09:22,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:09:22,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:09:22,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:22,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:22,550 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12987 [2024-11-16 09:09:22,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:09:22,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:09:22,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:09:22,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:09:22,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:22,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:22,751 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:22,851 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 09:09:22,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:22,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:23,061 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:23,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:23,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:23,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:23,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:09:23,182 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:09:23,183 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:09:23,183 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:09:23,184 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (1/1) ... [2024-11-16 09:09:23,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:09:23,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:09:23,217 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 09:09:23,224 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 09:09:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:09:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:09:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:09:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:09:23,273 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:09:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:09:23,273 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:09:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:09:23,273 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:09:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:09:23,273 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:09:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:09:23,273 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:09:23,274 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:09:23,274 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:09:23,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:09:23,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:09:23,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:09:23,395 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:09:23,397 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:09:30,972 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:09:30,973 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:09:30,973 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:09:30,974 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:09:30,975 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:09:30,975 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:09:30,975 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:09:31,404 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-16 09:09:31,405 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:09:31,468 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:09:31,468 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:09:31,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:09:31 BoogieIcfgContainer [2024-11-16 09:09:31,469 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:09:31,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:09:31,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:09:31,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:09:31,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:09:18" (1/3) ... [2024-11-16 09:09:31,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bed4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:09:31, skipping insertion in model container [2024-11-16 09:09:31,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:09:22" (2/3) ... [2024-11-16 09:09:31,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bed4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:09:31, skipping insertion in model container [2024-11-16 09:09:31,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:09:31" (3/3) ... [2024-11-16 09:09:31,480 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.08.cil-2.c [2024-11-16 09:09:31,501 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:09:31,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:09:31,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:09:31,639 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;@6b552f00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:09:31,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:09:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 2529 states, 2495 states have (on average 1.8296593186372745) internal successors, (4565), 2500 states have internal predecessors, (4565), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-16 09:09:31,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:31,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:31,677 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] [2024-11-16 09:09:31,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:31,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:31,684 INFO L85 PathProgramCache]: Analyzing trace with hash -484658770, now seen corresponding path program 1 times [2024-11-16 09:09:31,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:31,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368766518] [2024-11-16 09:09:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:31,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:32,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:32,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:32,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:32,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:32,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:32,416 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 09:09:32,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:32,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368766518] [2024-11-16 09:09:32,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368766518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:32,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:32,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:09:32,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513465097] [2024-11-16 09:09:32,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:32,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:09:32,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:32,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:09:32,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:09:32,482 INFO L87 Difference]: Start difference. First operand has 2529 states, 2495 states have (on average 1.8296593186372745) internal successors, (4565), 2500 states have internal predecessors, (4565), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:35,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:35,030 INFO L93 Difference]: Finished difference Result 5550 states and 10033 transitions. [2024-11-16 09:09:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:09:35,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:35,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:35,067 INFO L225 Difference]: With dead ends: 5550 [2024-11-16 09:09:35,068 INFO L226 Difference]: Without dead ends: 2965 [2024-11-16 09:09:35,079 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 09:09:35,083 INFO L432 NwaCegarLoop]: 4318 mSDtfsCounter, 5191 mSDsluCounter, 12998 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5206 SdHoareTripleChecker+Valid, 17316 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:35,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5206 Valid, 17316 Invalid, 1702 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:09:35,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2024-11-16 09:09:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2767. [2024-11-16 09:09:35,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2767 states, 2711 states have (on average 1.7860568056067871) internal successors, (4842), 2715 states have internal predecessors, (4842), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-16 09:09:35,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 4925 transitions. [2024-11-16 09:09:35,273 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 4925 transitions. Word has length 140 [2024-11-16 09:09:35,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:35,274 INFO L471 AbstractCegarLoop]: Abstraction has 2767 states and 4925 transitions. [2024-11-16 09:09:35,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:35,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 4925 transitions. [2024-11-16 09:09:35,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:35,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:35,286 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] [2024-11-16 09:09:35,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:09:35,288 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:35,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:35,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1458151792, now seen corresponding path program 1 times [2024-11-16 09:09:35,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:35,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659402419] [2024-11-16 09:09:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:35,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:35,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:35,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:35,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:35,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:35,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:35,760 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 09:09:35,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:35,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659402419] [2024-11-16 09:09:35,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659402419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:35,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:35,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:35,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37046685] [2024-11-16 09:09:35,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:35,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:35,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:35,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:35,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:35,769 INFO L87 Difference]: Start difference. First operand 2767 states and 4925 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:37,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:37,351 INFO L93 Difference]: Finished difference Result 3604 states and 6225 transitions. [2024-11-16 09:09:37,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:09:37,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:37,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:37,369 INFO L225 Difference]: With dead ends: 3604 [2024-11-16 09:09:37,370 INFO L226 Difference]: Without dead ends: 2976 [2024-11-16 09:09:37,374 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 09:09:37,375 INFO L432 NwaCegarLoop]: 4232 mSDtfsCounter, 4819 mSDsluCounter, 16718 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 20950 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:37,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 20950 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:09:37,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2024-11-16 09:09:37,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2767. [2024-11-16 09:09:37,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2767 states, 2711 states have (on average 1.7853190704537072) internal successors, (4840), 2715 states have internal predecessors, (4840), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-16 09:09:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 4923 transitions. [2024-11-16 09:09:37,469 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 4923 transitions. Word has length 140 [2024-11-16 09:09:37,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:37,470 INFO L471 AbstractCegarLoop]: Abstraction has 2767 states and 4923 transitions. [2024-11-16 09:09:37,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:37,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 4923 transitions. [2024-11-16 09:09:37,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:37,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:37,473 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] [2024-11-16 09:09:37,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:09:37,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:37,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:37,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1235649457, now seen corresponding path program 1 times [2024-11-16 09:09:37,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:37,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812654818] [2024-11-16 09:09:37,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:37,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:37,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:37,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:37,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:37,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:37,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:37,743 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 09:09:37,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:37,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812654818] [2024-11-16 09:09:37,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812654818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:37,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:37,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:37,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999857634] [2024-11-16 09:09:37,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:37,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:37,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:37,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:37,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:37,747 INFO L87 Difference]: Start difference. First operand 2767 states and 4923 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:40,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:40,419 INFO L93 Difference]: Finished difference Result 4016 states and 6846 transitions. [2024-11-16 09:09:40,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:09:40,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:40,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:40,438 INFO L225 Difference]: With dead ends: 4016 [2024-11-16 09:09:40,439 INFO L226 Difference]: Without dead ends: 3388 [2024-11-16 09:09:40,442 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 09:09:40,443 INFO L432 NwaCegarLoop]: 4472 mSDtfsCounter, 5127 mSDsluCounter, 17655 mSDsCounter, 0 mSdLazyCounter, 2543 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5142 SdHoareTripleChecker+Valid, 22127 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:40,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5142 Valid, 22127 Invalid, 2600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2543 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:09:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2024-11-16 09:09:40,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 3066. [2024-11-16 09:09:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2986 states have (on average 1.7561955793703952) internal successors, (5244), 2991 states have internal predecessors, (5244), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-16 09:09:40,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 5363 transitions. [2024-11-16 09:09:40,544 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 5363 transitions. Word has length 140 [2024-11-16 09:09:40,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:40,545 INFO L471 AbstractCegarLoop]: Abstraction has 3066 states and 5363 transitions. [2024-11-16 09:09:40,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:40,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 5363 transitions. [2024-11-16 09:09:40,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:40,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:40,547 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] [2024-11-16 09:09:40,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:09:40,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:40,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:40,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1876735600, now seen corresponding path program 1 times [2024-11-16 09:09:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:40,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381291294] [2024-11-16 09:09:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:40,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:40,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:40,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:40,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:40,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:40,836 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 09:09:40,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:40,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381291294] [2024-11-16 09:09:40,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381291294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:40,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:40,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:40,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720559161] [2024-11-16 09:09:40,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:40,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:40,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:40,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:40,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:40,843 INFO L87 Difference]: Start difference. First operand 3066 states and 5363 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:43,301 INFO L93 Difference]: Finished difference Result 5113 states and 8508 transitions. [2024-11-16 09:09:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:09:43,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:43,320 INFO L225 Difference]: With dead ends: 5113 [2024-11-16 09:09:43,320 INFO L226 Difference]: Without dead ends: 4186 [2024-11-16 09:09:43,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:09:43,326 INFO L432 NwaCegarLoop]: 4470 mSDtfsCounter, 5125 mSDsluCounter, 17655 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5140 SdHoareTripleChecker+Valid, 22125 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:43,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5140 Valid, 22125 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:09:43,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2024-11-16 09:09:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3666. [2024-11-16 09:09:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3538 states have (on average 1.7114188807235726) internal successors, (6055), 3545 states have internal predecessors, (6055), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-16 09:09:43,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6250 transitions. [2024-11-16 09:09:43,612 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6250 transitions. Word has length 140 [2024-11-16 09:09:43,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:43,613 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6250 transitions. [2024-11-16 09:09:43,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6250 transitions. [2024-11-16 09:09:43,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:43,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:43,616 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] [2024-11-16 09:09:43,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:09:43,617 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:43,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:43,618 INFO L85 PathProgramCache]: Analyzing trace with hash -650489809, now seen corresponding path program 1 times [2024-11-16 09:09:43,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:43,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551540876] [2024-11-16 09:09:43,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:43,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:43,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:43,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:43,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:43,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:43,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:43,959 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 09:09:43,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:43,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551540876] [2024-11-16 09:09:43,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551540876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:43,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:43,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:43,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795467072] [2024-11-16 09:09:43,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:43,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:43,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:43,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:43,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:43,963 INFO L87 Difference]: Start difference. First operand 3666 states and 6250 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:46,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:46,222 INFO L93 Difference]: Finished difference Result 7239 states and 11711 transitions. [2024-11-16 09:09:46,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:09:46,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:46,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:46,249 INFO L225 Difference]: With dead ends: 7239 [2024-11-16 09:09:46,249 INFO L226 Difference]: Without dead ends: 5712 [2024-11-16 09:09:46,258 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 09:09:46,261 INFO L432 NwaCegarLoop]: 4256 mSDtfsCounter, 5208 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 21257 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:46,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 21257 Invalid, 2229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:09:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5712 states. [2024-11-16 09:09:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5712 to 4868. [2024-11-16 09:09:46,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4868 states, 4644 states have (on average 1.6535314384151594) internal successors, (7679), 4655 states have internal predecessors, (7679), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-16 09:09:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 8032 transitions. [2024-11-16 09:09:46,737 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 8032 transitions. Word has length 140 [2024-11-16 09:09:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:46,738 INFO L471 AbstractCegarLoop]: Abstraction has 4868 states and 8032 transitions. [2024-11-16 09:09:46,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 8032 transitions. [2024-11-16 09:09:46,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:46,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:46,744 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] [2024-11-16 09:09:46,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:09:46,744 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:46,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash 635992496, now seen corresponding path program 1 times [2024-11-16 09:09:46,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:46,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246838001] [2024-11-16 09:09:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:46,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:46,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:46,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:46,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:46,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:46,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:46,977 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 09:09:46,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:46,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246838001] [2024-11-16 09:09:46,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246838001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:46,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:46,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:46,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380417980] [2024-11-16 09:09:46,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:46,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:46,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:46,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:46,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:46,982 INFO L87 Difference]: Start difference. First operand 4868 states and 8032 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:49,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:49,475 INFO L93 Difference]: Finished difference Result 11491 states and 18135 transitions. [2024-11-16 09:09:49,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:09:49,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:49,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:49,527 INFO L225 Difference]: With dead ends: 11491 [2024-11-16 09:09:49,528 INFO L226 Difference]: Without dead ends: 8762 [2024-11-16 09:09:49,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:09:49,543 INFO L432 NwaCegarLoop]: 4470 mSDtfsCounter, 5117 mSDsluCounter, 17655 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 22125 SdHoareTripleChecker+Invalid, 2572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:49,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 22125 Invalid, 2572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:09:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8762 states. [2024-11-16 09:09:49,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8762 to 7278. [2024-11-16 09:09:49,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7278 states, 6862 states have (on average 1.5935587292334596) internal successors, (10935), 6881 states have internal predecessors, (10935), 296 states have call successors, (296), 103 states have call predecessors, (296), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-16 09:09:49,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7278 states to 7278 states and 11622 transitions. [2024-11-16 09:09:49,952 INFO L78 Accepts]: Start accepts. Automaton has 7278 states and 11622 transitions. Word has length 140 [2024-11-16 09:09:49,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:49,953 INFO L471 AbstractCegarLoop]: Abstraction has 7278 states and 11622 transitions. [2024-11-16 09:09:49,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 7278 states and 11622 transitions. [2024-11-16 09:09:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:49,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:49,961 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] [2024-11-16 09:09:49,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:09:49,962 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:49,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:49,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1677812721, now seen corresponding path program 1 times [2024-11-16 09:09:49,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:49,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725031381] [2024-11-16 09:09:49,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:49,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:50,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:50,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:50,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:50,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:50,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:50,195 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 09:09:50,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:50,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725031381] [2024-11-16 09:09:50,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725031381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:50,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:50,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:50,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981454642] [2024-11-16 09:09:50,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:50,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:50,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:50,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:50,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:50,201 INFO L87 Difference]: Start difference. First operand 7278 states and 11622 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:53,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:53,054 INFO L93 Difference]: Finished difference Result 19995 states and 31043 transitions. [2024-11-16 09:09:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:09:53,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:53,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:53,103 INFO L225 Difference]: With dead ends: 19995 [2024-11-16 09:09:53,104 INFO L226 Difference]: Without dead ends: 14856 [2024-11-16 09:09:53,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:09:53,128 INFO L432 NwaCegarLoop]: 4470 mSDtfsCounter, 5113 mSDsluCounter, 17655 mSDsCounter, 0 mSdLazyCounter, 2504 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5128 SdHoareTripleChecker+Valid, 22125 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:53,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5128 Valid, 22125 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2504 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:09:53,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14856 states. [2024-11-16 09:09:53,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14856 to 12112. [2024-11-16 09:09:53,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12112 states, 11312 states have (on average 1.5441124469589815) internal successors, (17467), 11347 states have internal predecessors, (17467), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-16 09:09:53,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12112 states to 12112 states and 18876 transitions. [2024-11-16 09:09:53,653 INFO L78 Accepts]: Start accepts. Automaton has 12112 states and 18876 transitions. Word has length 140 [2024-11-16 09:09:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:53,653 INFO L471 AbstractCegarLoop]: Abstraction has 12112 states and 18876 transitions. [2024-11-16 09:09:53,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 12112 states and 18876 transitions. [2024-11-16 09:09:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:53,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:53,665 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] [2024-11-16 09:09:53,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:09:53,665 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:53,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:53,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1434137040, now seen corresponding path program 1 times [2024-11-16 09:09:53,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:53,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529666028] [2024-11-16 09:09:53,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:53,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:53,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:53,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:53,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:53,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:53,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:53,896 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 09:09:53,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:53,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529666028] [2024-11-16 09:09:53,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529666028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:53,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:53,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:53,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542981954] [2024-11-16 09:09:53,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:53,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:53,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:53,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:53,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:53,898 INFO L87 Difference]: Start difference. First operand 12112 states and 18876 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:55,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:55,448 INFO L93 Difference]: Finished difference Result 24968 states and 38783 transitions. [2024-11-16 09:09:55,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:09:55,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:55,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:55,508 INFO L225 Difference]: With dead ends: 24968 [2024-11-16 09:09:55,508 INFO L226 Difference]: Without dead ends: 14995 [2024-11-16 09:09:55,542 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 09:09:55,543 INFO L432 NwaCegarLoop]: 4231 mSDtfsCounter, 4946 mSDsluCounter, 12565 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4962 SdHoareTripleChecker+Valid, 16796 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:55,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4962 Valid, 16796 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:09:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14995 states. [2024-11-16 09:09:56,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14995 to 12112. [2024-11-16 09:09:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12112 states, 11312 states have (on average 1.5411951909476662) internal successors, (17434), 11347 states have internal predecessors, (17434), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-16 09:09:56,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12112 states to 12112 states and 18843 transitions. [2024-11-16 09:09:56,307 INFO L78 Accepts]: Start accepts. Automaton has 12112 states and 18843 transitions. Word has length 140 [2024-11-16 09:09:56,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:56,308 INFO L471 AbstractCegarLoop]: Abstraction has 12112 states and 18843 transitions. [2024-11-16 09:09:56,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:56,308 INFO L276 IsEmpty]: Start isEmpty. Operand 12112 states and 18843 transitions. [2024-11-16 09:09:56,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:56,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:56,320 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] [2024-11-16 09:09:56,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:09:56,320 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:56,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:56,321 INFO L85 PathProgramCache]: Analyzing trace with hash 287596527, now seen corresponding path program 1 times [2024-11-16 09:09:56,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:56,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153198149] [2024-11-16 09:09:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:56,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:56,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:56,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:56,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:56,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:56,560 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 09:09:56,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:56,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153198149] [2024-11-16 09:09:56,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153198149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:56,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:56,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:56,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897687502] [2024-11-16 09:09:56,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:56,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:56,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:56,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:56,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:56,563 INFO L87 Difference]: Start difference. First operand 12112 states and 18843 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:58,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:58,108 INFO L93 Difference]: Finished difference Result 24933 states and 38615 transitions. [2024-11-16 09:09:58,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:09:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:09:58,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:58,167 INFO L225 Difference]: With dead ends: 24933 [2024-11-16 09:09:58,167 INFO L226 Difference]: Without dead ends: 14960 [2024-11-16 09:09:58,200 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 09:09:58,201 INFO L432 NwaCegarLoop]: 4231 mSDtfsCounter, 4944 mSDsluCounter, 12565 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4960 SdHoareTripleChecker+Valid, 16796 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:58,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4960 Valid, 16796 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:09:58,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14960 states. [2024-11-16 09:09:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14960 to 12112. [2024-11-16 09:09:58,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12112 states, 11312 states have (on average 1.5382779349363507) internal successors, (17401), 11347 states have internal predecessors, (17401), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-16 09:09:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12112 states to 12112 states and 18810 transitions. [2024-11-16 09:09:58,899 INFO L78 Accepts]: Start accepts. Automaton has 12112 states and 18810 transitions. Word has length 140 [2024-11-16 09:09:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:58,900 INFO L471 AbstractCegarLoop]: Abstraction has 12112 states and 18810 transitions. [2024-11-16 09:09:58,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:58,901 INFO L276 IsEmpty]: Start isEmpty. Operand 12112 states and 18810 transitions. [2024-11-16 09:09:58,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:09:58,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:58,910 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] [2024-11-16 09:09:58,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:09:58,910 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:58,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:58,911 INFO L85 PathProgramCache]: Analyzing trace with hash -996314640, now seen corresponding path program 1 times [2024-11-16 09:09:58,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:58,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937779951] [2024-11-16 09:09:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:58,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:58,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:59,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:09:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:59,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:09:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:59,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:09:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:59,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:09:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:59,111 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 09:09:59,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:59,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937779951] [2024-11-16 09:09:59,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937779951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:59,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:59,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:59,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501113112] [2024-11-16 09:09:59,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:59,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:59,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:59,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:59,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:59,113 INFO L87 Difference]: Start difference. First operand 12112 states and 18810 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:10:02,333 INFO L93 Difference]: Finished difference Result 40803 states and 62473 transitions. [2024-11-16 09:10:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:10:02,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:10:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:10:02,425 INFO L225 Difference]: With dead ends: 40803 [2024-11-16 09:10:02,425 INFO L226 Difference]: Without dead ends: 30830 [2024-11-16 09:10:02,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:10:02,455 INFO L432 NwaCegarLoop]: 4468 mSDtfsCounter, 5423 mSDsluCounter, 17647 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5447 SdHoareTripleChecker+Valid, 22115 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:10:02,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5447 Valid, 22115 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:10:02,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30830 states. [2024-11-16 09:10:03,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30830 to 21778. [2024-11-16 09:10:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21778 states, 20242 states have (on average 1.5041497875703982) internal successors, (30447), 20309 states have internal predecessors, (30447), 1080 states have call successors, (1080), 391 states have call predecessors, (1080), 454 states have return successors, (1871), 1141 states have call predecessors, (1871), 1078 states have call successors, (1871) [2024-11-16 09:10:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21778 states to 21778 states and 33398 transitions. [2024-11-16 09:10:03,452 INFO L78 Accepts]: Start accepts. Automaton has 21778 states and 33398 transitions. Word has length 140 [2024-11-16 09:10:03,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:10:03,453 INFO L471 AbstractCegarLoop]: Abstraction has 21778 states and 33398 transitions. [2024-11-16 09:10:03,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:03,453 INFO L276 IsEmpty]: Start isEmpty. Operand 21778 states and 33398 transitions. [2024-11-16 09:10:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:10:03,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:10:03,607 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] [2024-11-16 09:10:03,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:10:03,608 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:10:03,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:10:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash -760636465, now seen corresponding path program 1 times [2024-11-16 09:10:03,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:10:03,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037206752] [2024-11-16 09:10:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:10:03,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:10:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:03,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:10:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:03,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:10:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:03,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:10:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:03,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:10:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:03,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:10:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:03,804 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 09:10:03,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:10:03,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037206752] [2024-11-16 09:10:03,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037206752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:10:03,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:10:03,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:10:03,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218411613] [2024-11-16 09:10:03,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:10:03,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:10:03,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:10:03,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:10:03,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:10:03,807 INFO L87 Difference]: Start difference. First operand 21778 states and 33398 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:10:05,531 INFO L93 Difference]: Finished difference Result 46723 states and 72103 transitions. [2024-11-16 09:10:05,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:10:05,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:10:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:10:05,647 INFO L225 Difference]: With dead ends: 46723 [2024-11-16 09:10:05,647 INFO L226 Difference]: Without dead ends: 27084 [2024-11-16 09:10:05,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:10:05,701 INFO L432 NwaCegarLoop]: 4231 mSDtfsCounter, 4941 mSDsluCounter, 12563 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 16794 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:10:05,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4957 Valid, 16794 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:10:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27084 states. [2024-11-16 09:10:07,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27084 to 21778. [2024-11-16 09:10:07,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21778 states, 20242 states have (on average 1.5009386424266378) internal successors, (30382), 20309 states have internal predecessors, (30382), 1080 states have call successors, (1080), 391 states have call predecessors, (1080), 454 states have return successors, (1871), 1141 states have call predecessors, (1871), 1078 states have call successors, (1871) [2024-11-16 09:10:07,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21778 states to 21778 states and 33333 transitions. [2024-11-16 09:10:07,163 INFO L78 Accepts]: Start accepts. Automaton has 21778 states and 33333 transitions. Word has length 140 [2024-11-16 09:10:07,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:10:07,164 INFO L471 AbstractCegarLoop]: Abstraction has 21778 states and 33333 transitions. [2024-11-16 09:10:07,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:07,164 INFO L276 IsEmpty]: Start isEmpty. Operand 21778 states and 33333 transitions. [2024-11-16 09:10:07,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:10:07,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:10:07,182 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] [2024-11-16 09:10:07,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:10:07,182 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:10:07,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:10:07,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1584317936, now seen corresponding path program 1 times [2024-11-16 09:10:07,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:10:07,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261418964] [2024-11-16 09:10:07,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:10:07,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:10:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:07,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:10:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:07,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:10:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:07,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:10:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:07,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:10:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:07,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:10:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:07,387 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 09:10:07,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:10:07,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261418964] [2024-11-16 09:10:07,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261418964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:10:07,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:10:07,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:10:07,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250841099] [2024-11-16 09:10:07,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:10:07,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:10:07,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:10:07,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:10:07,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:10:07,389 INFO L87 Difference]: Start difference. First operand 21778 states and 33333 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:10:11,423 INFO L93 Difference]: Finished difference Result 76731 states and 117317 transitions. [2024-11-16 09:10:11,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:10:11,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:10:11,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:10:11,642 INFO L225 Difference]: With dead ends: 76731 [2024-11-16 09:10:11,642 INFO L226 Difference]: Without dead ends: 57092 [2024-11-16 09:10:11,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:10:11,699 INFO L432 NwaCegarLoop]: 4468 mSDtfsCounter, 5333 mSDsluCounter, 17647 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5357 SdHoareTripleChecker+Valid, 22115 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:10:11,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5357 Valid, 22115 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:10:11,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57092 states. [2024-11-16 09:10:13,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57092 to 41136. [2024-11-16 09:10:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 38160 states have (on average 1.4804769392033543) internal successors, (56495), 38291 states have internal predecessors, (56495), 2072 states have call successors, (2072), 775 states have call predecessors, (2072), 902 states have return successors, (4385), 2197 states have call predecessors, (4385), 2070 states have call successors, (4385) [2024-11-16 09:10:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 62952 transitions. [2024-11-16 09:10:14,043 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 62952 transitions. Word has length 140 [2024-11-16 09:10:14,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:10:14,043 INFO L471 AbstractCegarLoop]: Abstraction has 41136 states and 62952 transitions. [2024-11-16 09:10:14,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 62952 transitions. [2024-11-16 09:10:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:10:14,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:10:14,080 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] [2024-11-16 09:10:14,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:10:14,080 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:10:14,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:10:14,081 INFO L85 PathProgramCache]: Analyzing trace with hash -502509649, now seen corresponding path program 1 times [2024-11-16 09:10:14,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:10:14,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39914456] [2024-11-16 09:10:14,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:10:14,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:10:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:14,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:10:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:14,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:10:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:14,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:10:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:14,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:10:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:14,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:10:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:14,460 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 09:10:14,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:10:14,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39914456] [2024-11-16 09:10:14,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39914456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:10:14,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:10:14,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:10:14,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613981656] [2024-11-16 09:10:14,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:10:14,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:10:14,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:10:14,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:10:14,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:10:14,462 INFO L87 Difference]: Start difference. First operand 41136 states and 62952 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:10:17,653 INFO L93 Difference]: Finished difference Result 90105 states and 139921 transitions. [2024-11-16 09:10:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:10:17,653 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:10:17,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:10:17,858 INFO L225 Difference]: With dead ends: 90105 [2024-11-16 09:10:17,859 INFO L226 Difference]: Without dead ends: 51108 [2024-11-16 09:10:17,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:10:17,969 INFO L432 NwaCegarLoop]: 4230 mSDtfsCounter, 4842 mSDsluCounter, 16716 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4858 SdHoareTripleChecker+Valid, 20946 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:10:17,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4858 Valid, 20946 Invalid, 1223 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:10:18,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51108 states. [2024-11-16 09:10:20,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51108 to 41136. [2024-11-16 09:10:20,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 38160 states have (on average 1.4770964360587002) internal successors, (56366), 38291 states have internal predecessors, (56366), 2072 states have call successors, (2072), 775 states have call predecessors, (2072), 902 states have return successors, (4385), 2197 states have call predecessors, (4385), 2070 states have call successors, (4385) [2024-11-16 09:10:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 62823 transitions. [2024-11-16 09:10:20,778 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 62823 transitions. Word has length 140 [2024-11-16 09:10:20,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:10:20,778 INFO L471 AbstractCegarLoop]: Abstraction has 41136 states and 62823 transitions. [2024-11-16 09:10:20,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 62823 transitions. [2024-11-16 09:10:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:10:20,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:10:20,811 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] [2024-11-16 09:10:20,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:10:20,811 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:10:20,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:10:20,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1021801936, now seen corresponding path program 1 times [2024-11-16 09:10:20,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:10:20,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779294559] [2024-11-16 09:10:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:10:20,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:10:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:20,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:10:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:20,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:10:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:20,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:10:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:21,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:10:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:21,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:10:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:21,018 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 09:10:21,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:10:21,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779294559] [2024-11-16 09:10:21,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779294559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:10:21,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:10:21,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:10:21,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915497243] [2024-11-16 09:10:21,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:10:21,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:10:21,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:10:21,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:10:21,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:10:21,021 INFO L87 Difference]: Start difference. First operand 41136 states and 62823 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:10:24,293 INFO L93 Difference]: Finished difference Result 89974 states and 139273 transitions. [2024-11-16 09:10:24,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:10:24,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-16 09:10:24,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:10:24,461 INFO L225 Difference]: With dead ends: 89974 [2024-11-16 09:10:24,461 INFO L226 Difference]: Without dead ends: 50977 [2024-11-16 09:10:24,539 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 09:10:24,540 INFO L432 NwaCegarLoop]: 4231 mSDtfsCounter, 4818 mSDsluCounter, 16716 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 20947 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:10:24,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4834 Valid, 20947 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:10:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50977 states. [2024-11-16 09:10:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50977 to 41136. [2024-11-16 09:10:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 38160 states have (on average 1.4737159329140461) internal successors, (56237), 38291 states have internal predecessors, (56237), 2072 states have call successors, (2072), 775 states have call predecessors, (2072), 902 states have return successors, (4385), 2197 states have call predecessors, (4385), 2070 states have call successors, (4385) [2024-11-16 09:10:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 62694 transitions. [2024-11-16 09:10:26,947 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 62694 transitions. Word has length 140 [2024-11-16 09:10:26,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:10:26,947 INFO L471 AbstractCegarLoop]: Abstraction has 41136 states and 62694 transitions. [2024-11-16 09:10:26,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:10:26,948 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 62694 transitions. [2024-11-16 09:10:26,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:10:26,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:10:26,975 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] [2024-11-16 09:10:26,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:10:26,976 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:10:26,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:10:26,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2008384625, now seen corresponding path program 1 times [2024-11-16 09:10:26,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:10:26,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474397927] [2024-11-16 09:10:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:10:26,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:10:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:27,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:10:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:27,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:10:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:27,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:10:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:27,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:10:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:27,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:10:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:10:27,150 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 09:10:27,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:10:27,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474397927] [2024-11-16 09:10:27,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474397927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:10:27,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:10:27,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:10:27,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704091536] [2024-11-16 09:10:27,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:10:27,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:10:27,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:10:27,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:10:27,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:10:27,153 INFO L87 Difference]: Start difference. First operand 41136 states and 62694 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)