./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.06.cil-1.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_label49+token_ring.06.cil-1.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 446a871a3cd47ea45eeb885eff35eb33cc93ddc5fa339490f1703fb03f5dc129 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:19:24,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:19:24,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:19:24,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:19:24,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:19:24,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:19:24,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:19:24,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:19:24,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:19:24,797 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:19:24,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:19:24,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:19:24,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:19:24,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:19:24,800 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:19:24,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:19:24,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:19:24,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:19:24,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:19:24,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:19:24,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:19:24,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:19:24,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:19:24,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:19:24,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:19:24,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:19:24,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:19:24,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:19:24,805 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:19:24,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:19:24,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:19:24,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:19:24,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:19:24,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:19:24,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:19:24,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:19:24,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:19:24,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:19:24,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:19:24,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:19:24,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:19:24,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:19:24,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 446a871a3cd47ea45eeb885eff35eb33cc93ddc5fa339490f1703fb03f5dc129 [2024-11-16 09:19:25,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:19:25,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:19:25,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:19:25,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:19:25,041 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:19:25,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.06.cil-1.c [2024-11-16 09:19:26,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:19:26,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:19:26,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.06.cil-1.c [2024-11-16 09:19:26,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff443132/0e9d8fd99b3b4968bf0b5edae0f6bcff/FLAGf93bbf146 [2024-11-16 09:19:26,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff443132/0e9d8fd99b3b4968bf0b5edae0f6bcff [2024-11-16 09:19:26,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:19:26,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:19:26,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:19:26,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:19:26,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:19:26,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:19:26" (1/1) ... [2024-11-16 09:19:26,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707af737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:26, skipping insertion in model container [2024-11-16 09:19:26,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:19:26" (1/1) ... [2024-11-16 09:19:27,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:19:28,530 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_label49+token_ring.06.cil-1.c[380593,380606] [2024-11-16 09:19:28,560 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_label49+token_ring.06.cil-1.c[383339,383352] [2024-11-16 09:19:28,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:19:28,720 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:19:29,313 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_label49+token_ring.06.cil-1.c[380593,380606] [2024-11-16 09:19:29,325 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_label49+token_ring.06.cil-1.c[383339,383352] [2024-11-16 09:19:29,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:19:29,393 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:19:29,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29 WrapperNode [2024-11-16 09:19:29,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:19:29,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:19:29,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:19:29,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:19:29,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:29,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:29,776 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12869 [2024-11-16 09:19:29,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:19:29,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:19:29,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:19:29,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:19:29,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:29,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:29,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:29,995 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 09:19:29,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:29,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:30,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:30,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:30,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:30,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:30,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:19:30,266 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:19:30,266 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:19:30,266 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:19:30,267 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (1/1) ... [2024-11-16 09:19:30,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:19:30,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:19:30,295 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 09:19:30,297 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 09:19:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:19:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:19:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:19:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:19:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:19:30,335 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:19:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:19:30,335 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:19:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:19:30,335 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:19:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:19:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:19:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:19:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:19:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:19:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:19:30,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:19:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:19:30,433 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:19:30,435 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:19:36,826 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:19:36,826 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:19:36,827 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:19:36,827 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:19:36,828 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:19:36,828 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:19:36,828 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:19:37,076 INFO L? ?]: Removed 1723 outVars from TransFormulas that were not future-live. [2024-11-16 09:19:37,076 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:19:37,125 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:19:37,125 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:19:37,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:19:37 BoogieIcfgContainer [2024-11-16 09:19:37,126 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:19:37,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:19:37,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:19:37,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:19:37,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:19:26" (1/3) ... [2024-11-16 09:19:37,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630477bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:19:37, skipping insertion in model container [2024-11-16 09:19:37,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:29" (2/3) ... [2024-11-16 09:19:37,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630477bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:19:37, skipping insertion in model container [2024-11-16 09:19:37,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:19:37" (3/3) ... [2024-11-16 09:19:37,134 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.06.cil-1.c [2024-11-16 09:19:37,148 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:19:37,148 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:19:37,255 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:19:37,262 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;@24dee980, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:19:37,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:19:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2437 states have (on average 1.8354534263438653) internal successors, (4473), 2442 states have internal predecessors, (4473), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-16 09:19:37,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:37,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:37,292 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] [2024-11-16 09:19:37,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:37,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:37,297 INFO L85 PathProgramCache]: Analyzing trace with hash -256233412, now seen corresponding path program 1 times [2024-11-16 09:19:37,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:37,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695160879] [2024-11-16 09:19:37,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:37,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:37,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:37,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695160879] [2024-11-16 09:19:37,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695160879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:37,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:37,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:19:37,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339834309] [2024-11-16 09:19:37,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:37,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:19:37,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:37,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:19:37,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:19:37,935 INFO L87 Difference]: Start difference. First operand has 2469 states, 2437 states have (on average 1.8354534263438653) internal successors, (4473), 2442 states have internal predecessors, (4473), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (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 09:19:39,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:39,598 INFO L93 Difference]: Finished difference Result 5330 states and 9673 transitions. [2024-11-16 09:19:39,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:19:39,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:39,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:39,627 INFO L225 Difference]: With dead ends: 5330 [2024-11-16 09:19:39,627 INFO L226 Difference]: Without dead ends: 2803 [2024-11-16 09:19:39,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:39,639 INFO L432 NwaCegarLoop]: 4270 mSDtfsCounter, 4953 mSDsluCounter, 12840 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 17110 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:39,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4966 Valid, 17110 Invalid, 1358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [92 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:19:39,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2024-11-16 09:19:39,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2649. [2024-11-16 09:19:39,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2597 states have (on average 1.796688486715441) internal successors, (4666), 2601 states have internal predecessors, (4666), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2024-11-16 09:19:39,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 4741 transitions. [2024-11-16 09:19:39,770 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 4741 transitions. Word has length 118 [2024-11-16 09:19:39,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:39,771 INFO L471 AbstractCegarLoop]: Abstraction has 2649 states and 4741 transitions. [2024-11-16 09:19:39,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (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 09:19:39,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 4741 transitions. [2024-11-16 09:19:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:39,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:39,778 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] [2024-11-16 09:19:39,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:19:39,778 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:39,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:39,779 INFO L85 PathProgramCache]: Analyzing trace with hash 314995454, now seen corresponding path program 1 times [2024-11-16 09:19:39,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:39,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654384171] [2024-11-16 09:19:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:39,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:39,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:40,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:40,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654384171] [2024-11-16 09:19:40,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654384171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:40,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:40,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:40,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948522169] [2024-11-16 09:19:40,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:40,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:40,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:40,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:40,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:40,152 INFO L87 Difference]: Start difference. First operand 2649 states and 4741 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:41,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:41,545 INFO L93 Difference]: Finished difference Result 3322 states and 5777 transitions. [2024-11-16 09:19:41,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:41,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:41,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:41,556 INFO L225 Difference]: With dead ends: 3322 [2024-11-16 09:19:41,556 INFO L226 Difference]: Without dead ends: 2810 [2024-11-16 09:19:41,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:41,559 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 4647 mSDsluCounter, 16558 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4661 SdHoareTripleChecker+Valid, 20742 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:41,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4661 Valid, 20742 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:19:41,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2024-11-16 09:19:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2649. [2024-11-16 09:19:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2597 states have (on average 1.7959183673469388) internal successors, (4664), 2601 states have internal predecessors, (4664), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2024-11-16 09:19:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 4739 transitions. [2024-11-16 09:19:41,620 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 4739 transitions. Word has length 118 [2024-11-16 09:19:41,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:41,620 INFO L471 AbstractCegarLoop]: Abstraction has 2649 states and 4739 transitions. [2024-11-16 09:19:41,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:41,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 4739 transitions. [2024-11-16 09:19:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:41,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:41,622 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] [2024-11-16 09:19:41,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:19:41,623 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:41,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:41,623 INFO L85 PathProgramCache]: Analyzing trace with hash -883739811, now seen corresponding path program 1 times [2024-11-16 09:19:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:41,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685483335] [2024-11-16 09:19:41,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:41,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:41,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685483335] [2024-11-16 09:19:41,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685483335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:41,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:41,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:41,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030261867] [2024-11-16 09:19:41,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:41,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:41,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:41,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:41,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:41,835 INFO L87 Difference]: Start difference. First operand 2649 states and 4739 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:43,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:43,726 INFO L93 Difference]: Finished difference Result 3652 states and 6266 transitions. [2024-11-16 09:19:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:43,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:43,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:43,743 INFO L225 Difference]: With dead ends: 3652 [2024-11-16 09:19:43,743 INFO L226 Difference]: Without dead ends: 3140 [2024-11-16 09:19:43,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:43,746 INFO L432 NwaCegarLoop]: 4384 mSDtfsCounter, 4881 mSDsluCounter, 17327 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4894 SdHoareTripleChecker+Valid, 21711 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:43,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4894 Valid, 21711 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:19:43,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2024-11-16 09:19:43,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 2892. [2024-11-16 09:19:43,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2818 states have (on average 1.7693399574166075) internal successors, (4986), 2823 states have internal predecessors, (4986), 52 states have call successors, (52), 19 states have call predecessors, (52), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2024-11-16 09:19:43,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 5093 transitions. [2024-11-16 09:19:43,831 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 5093 transitions. Word has length 118 [2024-11-16 09:19:43,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:43,832 INFO L471 AbstractCegarLoop]: Abstraction has 2892 states and 5093 transitions. [2024-11-16 09:19:43,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:43,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 5093 transitions. [2024-11-16 09:19:43,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:43,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:43,835 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] [2024-11-16 09:19:43,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:19:43,836 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:43,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:43,836 INFO L85 PathProgramCache]: Analyzing trace with hash -368219362, now seen corresponding path program 1 times [2024-11-16 09:19:43,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:43,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467729051] [2024-11-16 09:19:43,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:43,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:43,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:43,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:44,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:44,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:44,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:44,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467729051] [2024-11-16 09:19:44,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467729051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:44,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:44,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:44,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315084527] [2024-11-16 09:19:44,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:44,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:44,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:44,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:44,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:44,055 INFO L87 Difference]: Start difference. First operand 2892 states and 5093 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:45,743 INFO L93 Difference]: Finished difference Result 4533 states and 7586 transitions. [2024-11-16 09:19:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:45,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:45,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:45,756 INFO L225 Difference]: With dead ends: 4533 [2024-11-16 09:19:45,756 INFO L226 Difference]: Without dead ends: 3778 [2024-11-16 09:19:45,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:45,760 INFO L432 NwaCegarLoop]: 4382 mSDtfsCounter, 4879 mSDsluCounter, 17327 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 21709 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:45,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 21709 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:19:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2024-11-16 09:19:45,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 3380. [2024-11-16 09:19:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3262 states have (on average 1.7268546903740036) internal successors, (5633), 3269 states have internal predecessors, (5633), 82 states have call successors, (82), 31 states have call predecessors, (82), 34 states have return successors, (93), 83 states have call predecessors, (93), 80 states have call successors, (93) [2024-11-16 09:19:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 5808 transitions. [2024-11-16 09:19:45,841 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 5808 transitions. Word has length 118 [2024-11-16 09:19:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:45,844 INFO L471 AbstractCegarLoop]: Abstraction has 3380 states and 5808 transitions. [2024-11-16 09:19:45,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:45,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 5808 transitions. [2024-11-16 09:19:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:45,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:45,846 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] [2024-11-16 09:19:45,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:19:45,846 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:45,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:45,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1321420995, now seen corresponding path program 1 times [2024-11-16 09:19:45,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:45,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10343602] [2024-11-16 09:19:45,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:45,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:45,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:45,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10343602] [2024-11-16 09:19:45,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10343602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:45,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:45,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:45,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570922580] [2024-11-16 09:19:45,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:45,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:45,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:45,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:45,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:45,997 INFO L87 Difference]: Start difference. First operand 3380 states and 5808 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:47,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:47,620 INFO L93 Difference]: Finished difference Result 6243 states and 10137 transitions. [2024-11-16 09:19:47,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:47,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:47,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:47,636 INFO L225 Difference]: With dead ends: 6243 [2024-11-16 09:19:47,636 INFO L226 Difference]: Without dead ends: 5000 [2024-11-16 09:19:47,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:47,641 INFO L432 NwaCegarLoop]: 4382 mSDtfsCounter, 4875 mSDsluCounter, 17327 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4888 SdHoareTripleChecker+Valid, 21709 SdHoareTripleChecker+Invalid, 2051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:47,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4888 Valid, 21709 Invalid, 2051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:19:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2024-11-16 09:19:47,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 4358. [2024-11-16 09:19:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4358 states, 4152 states have (on average 1.66883429672447) internal successors, (6929), 4163 states have internal predecessors, (6929), 142 states have call successors, (142), 55 states have call predecessors, (142), 62 states have return successors, (175), 147 states have call predecessors, (175), 140 states have call successors, (175) [2024-11-16 09:19:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4358 states to 4358 states and 7246 transitions. [2024-11-16 09:19:47,744 INFO L78 Accepts]: Start accepts. Automaton has 4358 states and 7246 transitions. Word has length 118 [2024-11-16 09:19:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:47,744 INFO L471 AbstractCegarLoop]: Abstraction has 4358 states and 7246 transitions. [2024-11-16 09:19:47,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4358 states and 7246 transitions. [2024-11-16 09:19:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:47,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:47,746 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] [2024-11-16 09:19:47,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:19:47,747 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:47,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:47,747 INFO L85 PathProgramCache]: Analyzing trace with hash -520885442, now seen corresponding path program 1 times [2024-11-16 09:19:47,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:47,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848531890] [2024-11-16 09:19:47,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:47,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:47,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:47,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:47,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:47,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:47,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:47,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848531890] [2024-11-16 09:19:47,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848531890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:47,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:47,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:47,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329168222] [2024-11-16 09:19:47,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:47,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:47,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:47,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:47,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:47,887 INFO L87 Difference]: Start difference. First operand 4358 states and 7246 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:49,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:49,448 INFO L93 Difference]: Finished difference Result 9663 states and 15257 transitions. [2024-11-16 09:19:49,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:49,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:49,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:49,470 INFO L225 Difference]: With dead ends: 9663 [2024-11-16 09:19:49,470 INFO L226 Difference]: Without dead ends: 7442 [2024-11-16 09:19:49,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:49,477 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 4943 mSDsluCounter, 16797 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4956 SdHoareTripleChecker+Valid, 21005 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:49,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4956 Valid, 21005 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:19:49,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7442 states. [2024-11-16 09:19:49,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7442 to 6320. [2024-11-16 09:19:49,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6320 states, 5938 states have (on average 1.6047490737622094) internal successors, (9529), 5957 states have internal predecessors, (9529), 262 states have call successors, (262), 103 states have call predecessors, (262), 118 states have return successors, (357), 275 states have call predecessors, (357), 260 states have call successors, (357) [2024-11-16 09:19:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6320 states to 6320 states and 10148 transitions. [2024-11-16 09:19:49,663 INFO L78 Accepts]: Start accepts. Automaton has 6320 states and 10148 transitions. Word has length 118 [2024-11-16 09:19:49,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:49,664 INFO L471 AbstractCegarLoop]: Abstraction has 6320 states and 10148 transitions. [2024-11-16 09:19:49,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 6320 states and 10148 transitions. [2024-11-16 09:19:49,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:49,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:49,668 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] [2024-11-16 09:19:49,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:19:49,668 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:49,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:49,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1049251043, now seen corresponding path program 1 times [2024-11-16 09:19:49,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:49,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171678341] [2024-11-16 09:19:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:49,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:49,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:49,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171678341] [2024-11-16 09:19:49,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171678341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:49,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:49,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:49,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212376878] [2024-11-16 09:19:49,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:49,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:49,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:49,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:49,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:49,810 INFO L87 Difference]: Start difference. First operand 6320 states and 10148 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:52,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:52,187 INFO L93 Difference]: Finished difference Result 16503 states and 25557 transitions. [2024-11-16 09:19:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:52,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:52,223 INFO L225 Difference]: With dead ends: 16503 [2024-11-16 09:19:52,223 INFO L226 Difference]: Without dead ends: 12320 [2024-11-16 09:19:52,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:52,238 INFO L432 NwaCegarLoop]: 4382 mSDtfsCounter, 4867 mSDsluCounter, 17327 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4880 SdHoareTripleChecker+Valid, 21709 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:52,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4880 Valid, 21709 Invalid, 2033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:19:52,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12320 states. [2024-11-16 09:19:52,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12320 to 10258. [2024-11-16 09:19:52,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10258 states, 9524 states have (on average 1.5486140277194456) internal successors, (14749), 9559 states have internal predecessors, (14749), 502 states have call successors, (502), 199 states have call predecessors, (502), 230 states have return successors, (775), 531 states have call predecessors, (775), 500 states have call successors, (775) [2024-11-16 09:19:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10258 states to 10258 states and 16026 transitions. [2024-11-16 09:19:52,816 INFO L78 Accepts]: Start accepts. Automaton has 10258 states and 16026 transitions. Word has length 118 [2024-11-16 09:19:52,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:52,817 INFO L471 AbstractCegarLoop]: Abstraction has 10258 states and 16026 transitions. [2024-11-16 09:19:52,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:52,817 INFO L276 IsEmpty]: Start isEmpty. Operand 10258 states and 16026 transitions. [2024-11-16 09:19:52,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:52,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:52,826 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] [2024-11-16 09:19:52,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:19:52,826 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:52,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash -373558434, now seen corresponding path program 1 times [2024-11-16 09:19:52,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:52,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324200020] [2024-11-16 09:19:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:52,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:52,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:52,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:53,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:53,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324200020] [2024-11-16 09:19:53,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324200020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:53,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:53,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:53,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055711536] [2024-11-16 09:19:53,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:53,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:53,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:53,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:53,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:53,023 INFO L87 Difference]: Start difference. First operand 10258 states and 16026 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:55,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:55,645 INFO L93 Difference]: Finished difference Result 33159 states and 50831 transitions. [2024-11-16 09:19:55,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:19:55,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:55,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:55,709 INFO L225 Difference]: With dead ends: 33159 [2024-11-16 09:19:55,710 INFO L226 Difference]: Without dead ends: 25038 [2024-11-16 09:19:55,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:19:55,738 INFO L432 NwaCegarLoop]: 4380 mSDtfsCounter, 5115 mSDsluCounter, 17319 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 21699 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:55,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5135 Valid, 21699 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:19:55,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25038 states. [2024-11-16 09:19:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25038 to 18068. [2024-11-16 09:19:56,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18068 states, 16662 states have (on average 1.5105629576281359) internal successors, (25169), 16729 states have internal predecessors, (25169), 950 states have call successors, (950), 391 states have call predecessors, (950), 454 states have return successors, (1741), 1011 states have call predecessors, (1741), 948 states have call successors, (1741) [2024-11-16 09:19:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18068 states to 18068 states and 27860 transitions. [2024-11-16 09:19:56,578 INFO L78 Accepts]: Start accepts. Automaton has 18068 states and 27860 transitions. Word has length 118 [2024-11-16 09:19:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:56,578 INFO L471 AbstractCegarLoop]: Abstraction has 18068 states and 27860 transitions. [2024-11-16 09:19:56,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 18068 states and 27860 transitions. [2024-11-16 09:19:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:56,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:56,591 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] [2024-11-16 09:19:56,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:19:56,592 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:56,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:56,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1183045891, now seen corresponding path program 1 times [2024-11-16 09:19:56,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:56,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563071968] [2024-11-16 09:19:56,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:56,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:56,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:56,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:56,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:56,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:56,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:56,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:56,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563071968] [2024-11-16 09:19:56,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563071968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:56,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:56,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:56,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733008859] [2024-11-16 09:19:56,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:56,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:56,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:56,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:56,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:56,718 INFO L87 Difference]: Start difference. First operand 18068 states and 27860 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:58,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:58,156 INFO L93 Difference]: Finished difference Result 38061 states and 58997 transitions. [2024-11-16 09:19:58,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:58,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:19:58,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:58,213 INFO L225 Difference]: With dead ends: 38061 [2024-11-16 09:19:58,214 INFO L226 Difference]: Without dead ends: 22130 [2024-11-16 09:19:58,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:58,254 INFO L432 NwaCegarLoop]: 4183 mSDtfsCounter, 4653 mSDsluCounter, 16556 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4667 SdHoareTripleChecker+Valid, 20739 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:58,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4667 Valid, 20739 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:19:58,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22130 states. [2024-11-16 09:19:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22130 to 18068. [2024-11-16 09:19:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18068 states, 16662 states have (on average 1.5066618653222903) internal successors, (25104), 16729 states have internal predecessors, (25104), 950 states have call successors, (950), 391 states have call predecessors, (950), 454 states have return successors, (1741), 1011 states have call predecessors, (1741), 948 states have call successors, (1741) [2024-11-16 09:19:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18068 states to 18068 states and 27795 transitions. [2024-11-16 09:19:58,907 INFO L78 Accepts]: Start accepts. Automaton has 18068 states and 27795 transitions. Word has length 118 [2024-11-16 09:19:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:58,907 INFO L471 AbstractCegarLoop]: Abstraction has 18068 states and 27795 transitions. [2024-11-16 09:19:58,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:19:58,907 INFO L276 IsEmpty]: Start isEmpty. Operand 18068 states and 27795 transitions. [2024-11-16 09:19:58,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:19:58,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:58,917 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] [2024-11-16 09:19:58,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:19:58,917 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:58,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:58,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1624800386, now seen corresponding path program 1 times [2024-11-16 09:19:58,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:58,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791197422] [2024-11-16 09:19:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:58,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:19:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:59,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:19:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:59,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:19:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:59,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:19:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:59,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:59,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791197422] [2024-11-16 09:19:59,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791197422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:59,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:59,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:59,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435078357] [2024-11-16 09:19:59,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:59,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:59,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:59,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:59,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:59,049 INFO L87 Difference]: Start difference. First operand 18068 states and 27795 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:20:02,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:02,464 INFO L93 Difference]: Finished difference Result 61539 states and 94221 transitions. [2024-11-16 09:20:02,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:20:02,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:20:02,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:02,588 INFO L225 Difference]: With dead ends: 61539 [2024-11-16 09:20:02,589 INFO L226 Difference]: Without dead ends: 45608 [2024-11-16 09:20:02,628 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 09:20:02,628 INFO L432 NwaCegarLoop]: 4380 mSDtfsCounter, 5025 mSDsluCounter, 17319 mSDsCounter, 0 mSdLazyCounter, 1929 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5045 SdHoareTripleChecker+Valid, 21699 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:02,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5045 Valid, 21699 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1929 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:20:02,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45608 states. [2024-11-16 09:20:04,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45608 to 33718. [2024-11-16 09:20:04,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33718 states, 31000 states have (on average 1.483) internal successors, (45973), 31131 states have internal predecessors, (45973), 1814 states have call successors, (1814), 775 states have call predecessors, (1814), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2024-11-16 09:20:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33718 states to 33718 states and 51914 transitions. [2024-11-16 09:20:04,553 INFO L78 Accepts]: Start accepts. Automaton has 33718 states and 51914 transitions. Word has length 118 [2024-11-16 09:20:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:04,554 INFO L471 AbstractCegarLoop]: Abstraction has 33718 states and 51914 transitions. [2024-11-16 09:20:04,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:20:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 33718 states and 51914 transitions. [2024-11-16 09:20:04,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:20:04,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:04,575 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] [2024-11-16 09:20:04,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:20:04,575 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:04,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:04,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1639050531, now seen corresponding path program 1 times [2024-11-16 09:20:04,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:04,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794697019] [2024-11-16 09:20:04,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:04,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:04,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:04,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:20:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:04,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:20:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:04,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:20:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:04,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:20:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:04,690 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 09:20:04,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:04,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794697019] [2024-11-16 09:20:04,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794697019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:04,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:04,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:04,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918299594] [2024-11-16 09:20:04,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:04,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:04,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:04,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:04,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:04,692 INFO L87 Difference]: Start difference. First operand 33718 states and 51914 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:20:07,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:07,404 INFO L93 Difference]: Finished difference Result 72875 states and 113895 transitions. [2024-11-16 09:20:07,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:07,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:20:07,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:07,495 INFO L225 Difference]: With dead ends: 72875 [2024-11-16 09:20:07,496 INFO L226 Difference]: Without dead ends: 41294 [2024-11-16 09:20:07,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:20:07,540 INFO L432 NwaCegarLoop]: 4183 mSDtfsCounter, 4652 mSDsluCounter, 16556 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4666 SdHoareTripleChecker+Valid, 20739 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:07,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4666 Valid, 20739 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:20:07,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41294 states. [2024-11-16 09:20:09,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41294 to 33718. [2024-11-16 09:20:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33718 states, 31000 states have (on average 1.4788387096774194) internal successors, (45844), 31131 states have internal predecessors, (45844), 1814 states have call successors, (1814), 775 states have call predecessors, (1814), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2024-11-16 09:20:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33718 states to 33718 states and 51785 transitions. [2024-11-16 09:20:09,165 INFO L78 Accepts]: Start accepts. Automaton has 33718 states and 51785 transitions. Word has length 118 [2024-11-16 09:20:09,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:09,165 INFO L471 AbstractCegarLoop]: Abstraction has 33718 states and 51785 transitions. [2024-11-16 09:20:09,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:20:09,165 INFO L276 IsEmpty]: Start isEmpty. Operand 33718 states and 51785 transitions. [2024-11-16 09:20:09,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:20:09,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:09,188 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] [2024-11-16 09:20:09,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:20:09,188 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:09,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:09,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1685625758, now seen corresponding path program 1 times [2024-11-16 09:20:09,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:09,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001071126] [2024-11-16 09:20:09,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:09,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:20:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:20:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:20:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:20:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,292 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 09:20:09,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:09,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001071126] [2024-11-16 09:20:09,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001071126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:09,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:09,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307476981] [2024-11-16 09:20:09,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:09,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:09,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:09,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:09,293 INFO L87 Difference]: Start difference. First operand 33718 states and 51785 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:20:12,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:12,278 INFO L93 Difference]: Finished difference Result 72744 states and 113247 transitions. [2024-11-16 09:20:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:12,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:20:12,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:12,360 INFO L225 Difference]: With dead ends: 72744 [2024-11-16 09:20:12,360 INFO L226 Difference]: Without dead ends: 41163 [2024-11-16 09:20:12,399 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 09:20:12,400 INFO L432 NwaCegarLoop]: 4183 mSDtfsCounter, 4650 mSDsluCounter, 16556 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 20739 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:12,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4664 Valid, 20739 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:20:12,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41163 states. [2024-11-16 09:20:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41163 to 33718. [2024-11-16 09:20:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33718 states, 31000 states have (on average 1.4746774193548386) internal successors, (45715), 31131 states have internal predecessors, (45715), 1814 states have call successors, (1814), 775 states have call predecessors, (1814), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2024-11-16 09:20:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33718 states to 33718 states and 51656 transitions. [2024-11-16 09:20:14,293 INFO L78 Accepts]: Start accepts. Automaton has 33718 states and 51656 transitions. Word has length 118 [2024-11-16 09:20:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:14,293 INFO L471 AbstractCegarLoop]: Abstraction has 33718 states and 51656 transitions. [2024-11-16 09:20:14,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:20:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 33718 states and 51656 transitions. [2024-11-16 09:20:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 09:20:14,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:14,317 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] [2024-11-16 09:20:14,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:20:14,318 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:14,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:14,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1670809923, now seen corresponding path program 1 times [2024-11-16 09:20:14,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:14,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163339918] [2024-11-16 09:20:14,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:14,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:14,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:14,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 09:20:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:14,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:20:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:14,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:20:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:14,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 09:20:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:14,452 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 09:20:14,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:14,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163339918] [2024-11-16 09:20:14,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163339918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:14,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:14,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:14,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621107314] [2024-11-16 09:20:14,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:14,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:14,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:14,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:14,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:14,455 INFO L87 Difference]: Start difference. First operand 33718 states and 51656 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 09:20:19,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:19,929 INFO L93 Difference]: Finished difference Result 114105 states and 175680 transitions. [2024-11-16 09:20:19,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:20:19,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (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 118 [2024-11-16 09:20:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:20,129 INFO L225 Difference]: With dead ends: 114105 [2024-11-16 09:20:20,129 INFO L226 Difference]: Without dead ends: 82524 [2024-11-16 09:20:20,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:20:20,196 INFO L432 NwaCegarLoop]: 4380 mSDtfsCounter, 4888 mSDsluCounter, 17319 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4908 SdHoareTripleChecker+Valid, 21699 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:20,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4908 Valid, 21699 Invalid, 1930 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:20:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82524 states.