./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.09.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.09.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 9c44d114d56c1766d1cbfa8e225f5145dcce7e8e615df451e987409645be250c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:19:50,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:19:50,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:19:50,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:19:50,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:19:50,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:19:50,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:19:50,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:19:50,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:19:50,781 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:19:50,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:19:50,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:19:50,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:19:50,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:19:50,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:19:50,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:19:50,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:19:50,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:19:50,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:19:50,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:19:50,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:19:50,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:19:50,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:19:50,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:19:50,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:19:50,803 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:19:50,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:19:50,803 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:19:50,803 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:19:50,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:19:50,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:19:50,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:19:50,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:19:50,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:19:50,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:19:50,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:19:50,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:19:50,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:19:50,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:19:50,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:19:50,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:19:50,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:19:50,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c44d114d56c1766d1cbfa8e225f5145dcce7e8e615df451e987409645be250c [2024-11-16 09:19:51,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:19:51,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:19:51,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:19:51,143 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:19:51,144 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:19:51,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.09.cil-1.c [2024-11-16 09:19:52,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:19:53,179 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:19:53,182 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.09.cil-1.c [2024-11-16 09:19:53,234 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6e2a77c8/d4c9002ce01245d891d2380deeb96b0b/FLAG4094ee0e6 [2024-11-16 09:19:53,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6e2a77c8/d4c9002ce01245d891d2380deeb96b0b [2024-11-16 09:19:53,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:19:53,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:19:53,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:19:53,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:19:53,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:19:53,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:19:53" (1/1) ... [2024-11-16 09:19:53,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5fc17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:53, skipping insertion in model container [2024-11-16 09:19:53,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:19:53" (1/1) ... [2024-11-16 09:19:53,431 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:19:55,093 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.09.cil-1.c[380593,380606] [2024-11-16 09:19:55,138 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.09.cil-1.c[383339,383352] [2024-11-16 09:19:55,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:19:55,376 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:19:56,198 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.09.cil-1.c[380593,380606] [2024-11-16 09:19:56,204 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.09.cil-1.c[383339,383352] [2024-11-16 09:19:56,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:19:56,285 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:19:56,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56 WrapperNode [2024-11-16 09:19:56,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:19:56,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:19:56,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:19:56,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:19:56,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:56,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:56,793 INFO L138 Inliner]: procedures = 62, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13040 [2024-11-16 09:19:56,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:19:56,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:19:56,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:19:56,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:19:56,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:56,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:56,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:57,052 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 09:19:57,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:57,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:57,211 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:57,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:57,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:57,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:57,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:19:57,349 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:19:57,349 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:19:57,349 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:19:57,350 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (1/1) ... [2024-11-16 09:19:57,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:19:57,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:19:57,379 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 09:19:57,382 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 09:19:57,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:19:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:19:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:19:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:19:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:19:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:19:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:19:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:19:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:19:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:19:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:19:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:19:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:19:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:19:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:19:57,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:19:57,651 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:19:57,654 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:20:05,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:20:05,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:20:05,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:20:05,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:20:05,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:20:05,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:20:05,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:20:05,804 INFO L? ?]: Removed 1737 outVars from TransFormulas that were not future-live. [2024-11-16 09:20:05,804 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:20:05,870 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:20:05,871 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:20:05,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:20:05 BoogieIcfgContainer [2024-11-16 09:20:05,871 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:20:05,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:20:05,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:20:05,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:20:05,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:19:53" (1/3) ... [2024-11-16 09:20:05,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3464fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:20:05, skipping insertion in model container [2024-11-16 09:20:05,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:56" (2/3) ... [2024-11-16 09:20:05,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3464fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:20:05, skipping insertion in model container [2024-11-16 09:20:05,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:20:05" (3/3) ... [2024-11-16 09:20:05,881 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.09.cil-1.c [2024-11-16 09:20:05,898 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:20:05,899 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:20:06,037 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:20:06,045 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;@230525ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:20:06,046 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:20:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 2551 states, 2519 states have (on average 1.8265184597062327) internal successors, (4601), 2522 states have internal predecessors, (4601), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 09:20:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:06,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:06,074 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:06,074 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:06,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:06,080 INFO L85 PathProgramCache]: Analyzing trace with hash -12354288, now seen corresponding path program 1 times [2024-11-16 09:20:06,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:06,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086615212] [2024-11-16 09:20:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:06,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,933 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 09:20:06,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:06,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086615212] [2024-11-16 09:20:06,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086615212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:06,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:06,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:20:06,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823848917] [2024-11-16 09:20:06,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:06,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:20:06,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:06,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:20:06,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:20:06,979 INFO L87 Difference]: Start difference. First operand has 2551 states, 2519 states have (on average 1.8265184597062327) internal successors, (4601), 2522 states have internal predecessors, (4601), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:09,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:09,533 INFO L93 Difference]: Finished difference Result 5638 states and 10171 transitions. [2024-11-16 09:20:09,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:20:09,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:09,575 INFO L225 Difference]: With dead ends: 5638 [2024-11-16 09:20:09,576 INFO L226 Difference]: Without dead ends: 3032 [2024-11-16 09:20:09,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:20:09,593 INFO L432 NwaCegarLoop]: 4332 mSDtfsCounter, 5290 mSDsluCounter, 13043 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5306 SdHoareTripleChecker+Valid, 17375 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:09,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5306 Valid, 17375 Invalid, 1858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:20:09,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2024-11-16 09:20:09,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2814. [2024-11-16 09:20:09,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2758 states have (on average 1.7802755620014503) internal successors, (4910), 2761 states have internal predecessors, (4910), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2024-11-16 09:20:09,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 4995 transitions. [2024-11-16 09:20:09,769 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 4995 transitions. Word has length 150 [2024-11-16 09:20:09,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:09,770 INFO L471 AbstractCegarLoop]: Abstraction has 2814 states and 4995 transitions. [2024-11-16 09:20:09,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:09,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 4995 transitions. [2024-11-16 09:20:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:09,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:09,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:09,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:20:09,782 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:09,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:09,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1448015502, now seen corresponding path program 1 times [2024-11-16 09:20:09,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:09,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196163876] [2024-11-16 09:20:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:09,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,078 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 09:20:10,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:10,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196163876] [2024-11-16 09:20:10,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196163876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:10,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:10,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:10,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905521546] [2024-11-16 09:20:10,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:10,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:10,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:10,082 INFO L87 Difference]: Start difference. First operand 2814 states and 4995 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:11,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:11,657 INFO L93 Difference]: Finished difference Result 3721 states and 6405 transitions. [2024-11-16 09:20:11,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:11,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:11,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:11,671 INFO L225 Difference]: With dead ends: 3721 [2024-11-16 09:20:11,671 INFO L226 Difference]: Without dead ends: 3047 [2024-11-16 09:20:11,674 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 09:20:11,676 INFO L432 NwaCegarLoop]: 4246 mSDtfsCounter, 5020 mSDsluCounter, 12604 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5037 SdHoareTripleChecker+Valid, 16850 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:11,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5037 Valid, 16850 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:20:11,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3047 states. [2024-11-16 09:20:11,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3047 to 2814. [2024-11-16 09:20:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2758 states have (on average 1.779550398839739) internal successors, (4908), 2761 states have internal predecessors, (4908), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2024-11-16 09:20:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 4993 transitions. [2024-11-16 09:20:11,776 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 4993 transitions. Word has length 150 [2024-11-16 09:20:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:11,777 INFO L471 AbstractCegarLoop]: Abstraction has 2814 states and 4993 transitions. [2024-11-16 09:20:11,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 4993 transitions. [2024-11-16 09:20:11,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:11,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:11,782 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:11,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:20:11,783 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:11,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash 973989519, now seen corresponding path program 1 times [2024-11-16 09:20:11,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:11,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231243363] [2024-11-16 09:20:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:11,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:11,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:11,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:12,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:12,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:12,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:12,055 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 09:20:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231243363] [2024-11-16 09:20:12,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231243363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:12,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:12,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:12,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254159124] [2024-11-16 09:20:12,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:12,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:12,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:12,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:12,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:12,060 INFO L87 Difference]: Start difference. First operand 2814 states and 4993 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:14,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:14,990 INFO L93 Difference]: Finished difference Result 4167 states and 7080 transitions. [2024-11-16 09:20:14,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:14,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:14,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:15,007 INFO L225 Difference]: With dead ends: 4167 [2024-11-16 09:20:15,007 INFO L226 Difference]: Without dead ends: 3493 [2024-11-16 09:20:15,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:15,013 INFO L432 NwaCegarLoop]: 4496 mSDtfsCounter, 5244 mSDsluCounter, 17745 mSDsCounter, 0 mSdLazyCounter, 2777 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5260 SdHoareTripleChecker+Valid, 22241 SdHoareTripleChecker+Invalid, 2832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:15,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5260 Valid, 22241 Invalid, 2832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 2777 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 09:20:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2024-11-16 09:20:15,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 3136. [2024-11-16 09:20:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3055 states have (on average 1.748936170212766) internal successors, (5343), 3059 states have internal predecessors, (5343), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-11-16 09:20:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 5466 transitions. [2024-11-16 09:20:15,125 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 5466 transitions. Word has length 150 [2024-11-16 09:20:15,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:15,125 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 5466 transitions. [2024-11-16 09:20:15,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 5466 transitions. [2024-11-16 09:20:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:15,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:15,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:20:15,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:20:15,129 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:15,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:15,129 INFO L85 PathProgramCache]: Analyzing trace with hash 681603694, now seen corresponding path program 1 times [2024-11-16 09:20:15,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:15,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024601199] [2024-11-16 09:20:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:15,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,378 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 09:20:15,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:15,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024601199] [2024-11-16 09:20:15,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024601199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:15,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:15,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:15,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021083652] [2024-11-16 09:20:15,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:15,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:15,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:15,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:15,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:15,381 INFO L87 Difference]: Start difference. First operand 3136 states and 5466 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:17,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:17,993 INFO L93 Difference]: Finished difference Result 5355 states and 8881 transitions. [2024-11-16 09:20:17,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:17,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:17,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:18,014 INFO L225 Difference]: With dead ends: 5355 [2024-11-16 09:20:18,014 INFO L226 Difference]: Without dead ends: 4359 [2024-11-16 09:20:18,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:18,020 INFO L432 NwaCegarLoop]: 4494 mSDtfsCounter, 5238 mSDsluCounter, 17745 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5254 SdHoareTripleChecker+Valid, 22239 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:18,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5254 Valid, 22239 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2748 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:20:18,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4359 states. [2024-11-16 09:20:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4359 to 3785. [2024-11-16 09:20:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 3654 states have (on average 1.702791461412151) internal successors, (6222), 3660 states have internal predecessors, (6222), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-11-16 09:20:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 6425 transitions. [2024-11-16 09:20:18,218 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 6425 transitions. Word has length 150 [2024-11-16 09:20:18,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:18,219 INFO L471 AbstractCegarLoop]: Abstraction has 3785 states and 6425 transitions. [2024-11-16 09:20:18,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 6425 transitions. [2024-11-16 09:20:18,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:18,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:18,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:18,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:20:18,225 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:18,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:18,226 INFO L85 PathProgramCache]: Analyzing trace with hash 466774541, now seen corresponding path program 1 times [2024-11-16 09:20:18,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:18,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558867694] [2024-11-16 09:20:18,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:18,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,674 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 09:20:18,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:18,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558867694] [2024-11-16 09:20:18,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558867694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:18,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:18,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:18,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252048414] [2024-11-16 09:20:18,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:18,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:18,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:18,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:18,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:18,680 INFO L87 Difference]: Start difference. First operand 3785 states and 6425 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:21,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:21,612 INFO L93 Difference]: Finished difference Result 7662 states and 12356 transitions. [2024-11-16 09:20:21,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:21,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:21,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:21,639 INFO L225 Difference]: With dead ends: 7662 [2024-11-16 09:20:21,640 INFO L226 Difference]: Without dead ends: 6017 [2024-11-16 09:20:21,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:21,649 INFO L432 NwaCegarLoop]: 4494 mSDtfsCounter, 5237 mSDsluCounter, 17745 mSDsCounter, 0 mSdLazyCounter, 2735 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5253 SdHoareTripleChecker+Valid, 22239 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:21,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5253 Valid, 22239 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2735 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 09:20:21,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2024-11-16 09:20:21,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 5084. [2024-11-16 09:20:21,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5084 states, 4853 states have (on average 1.6443437049247889) internal successors, (7980), 4863 states have internal predecessors, (7980), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-11-16 09:20:21,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5084 states to 5084 states and 8349 transitions. [2024-11-16 09:20:21,948 INFO L78 Accepts]: Start accepts. Automaton has 5084 states and 8349 transitions. Word has length 150 [2024-11-16 09:20:21,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:21,949 INFO L471 AbstractCegarLoop]: Abstraction has 5084 states and 8349 transitions. [2024-11-16 09:20:21,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5084 states and 8349 transitions. [2024-11-16 09:20:21,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:21,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:21,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:21,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:20:21,954 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:21,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:21,954 INFO L85 PathProgramCache]: Analyzing trace with hash -2034007410, now seen corresponding path program 1 times [2024-11-16 09:20:21,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:21,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407352669] [2024-11-16 09:20:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:21,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:22,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:22,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:22,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:22,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:22,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:22,180 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 09:20:22,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:22,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407352669] [2024-11-16 09:20:22,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407352669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:22,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:22,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:22,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503031616] [2024-11-16 09:20:22,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:22,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:22,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:22,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:22,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:22,185 INFO L87 Difference]: Start difference. First operand 5084 states and 8349 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:25,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:25,113 INFO L93 Difference]: Finished difference Result 12275 states and 19322 transitions. [2024-11-16 09:20:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:25,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:25,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:25,264 INFO L225 Difference]: With dead ends: 12275 [2024-11-16 09:20:25,265 INFO L226 Difference]: Without dead ends: 9331 [2024-11-16 09:20:25,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:25,277 INFO L432 NwaCegarLoop]: 4494 mSDtfsCounter, 5236 mSDsluCounter, 17745 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5252 SdHoareTripleChecker+Valid, 22239 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:25,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5252 Valid, 22239 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 09:20:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9331 states. [2024-11-16 09:20:25,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9331 to 7689. [2024-11-16 09:20:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7689 states, 7258 states have (on average 1.5852852025351336) internal successors, (11506), 7276 states have internal predecessors, (11506), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-11-16 09:20:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7689 states to 7689 states and 12225 transitions. [2024-11-16 09:20:25,600 INFO L78 Accepts]: Start accepts. Automaton has 7689 states and 12225 transitions. Word has length 150 [2024-11-16 09:20:25,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:25,601 INFO L471 AbstractCegarLoop]: Abstraction has 7689 states and 12225 transitions. [2024-11-16 09:20:25,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:25,602 INFO L276 IsEmpty]: Start isEmpty. Operand 7689 states and 12225 transitions. [2024-11-16 09:20:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:25,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:25,608 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:25,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:20:25,608 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:25,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:25,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1560488467, now seen corresponding path program 1 times [2024-11-16 09:20:25,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:25,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046891223] [2024-11-16 09:20:25,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:25,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,847 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 09:20:25,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:25,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046891223] [2024-11-16 09:20:25,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046891223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:25,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:25,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:25,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143897821] [2024-11-16 09:20:25,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:25,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:25,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:25,850 INFO L87 Difference]: Start difference. First operand 7689 states and 12225 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:27,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:27,267 INFO L93 Difference]: Finished difference Result 14945 states and 23394 transitions. [2024-11-16 09:20:27,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:27,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:27,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:27,298 INFO L225 Difference]: With dead ends: 14945 [2024-11-16 09:20:27,298 INFO L226 Difference]: Without dead ends: 9396 [2024-11-16 09:20:27,319 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 09:20:27,322 INFO L432 NwaCegarLoop]: 4245 mSDtfsCounter, 4899 mSDsluCounter, 16766 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 21011 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:27,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 21011 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:20:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9396 states. [2024-11-16 09:20:27,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9396 to 7689. [2024-11-16 09:20:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7689 states, 7258 states have (on average 1.5829429594929734) internal successors, (11489), 7276 states have internal predecessors, (11489), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-11-16 09:20:27,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7689 states to 7689 states and 12208 transitions. [2024-11-16 09:20:27,741 INFO L78 Accepts]: Start accepts. Automaton has 7689 states and 12208 transitions. Word has length 150 [2024-11-16 09:20:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:27,742 INFO L471 AbstractCegarLoop]: Abstraction has 7689 states and 12208 transitions. [2024-11-16 09:20:27,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:27,742 INFO L276 IsEmpty]: Start isEmpty. Operand 7689 states and 12208 transitions. [2024-11-16 09:20:27,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:27,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:27,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:27,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:20:27,748 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:27,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1129571666, now seen corresponding path program 1 times [2024-11-16 09:20:27,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:27,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228404967] [2024-11-16 09:20:27,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:27,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:27,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:27,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:27,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:27,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:27,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:27,956 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 09:20:27,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:27,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228404967] [2024-11-16 09:20:27,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228404967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:27,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:27,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:27,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234829416] [2024-11-16 09:20:27,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:27,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:27,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:27,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:27,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:27,958 INFO L87 Difference]: Start difference. First operand 7689 states and 12208 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:29,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:29,334 INFO L93 Difference]: Finished difference Result 14927 states and 23307 transitions. [2024-11-16 09:20:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:29,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:29,364 INFO L225 Difference]: With dead ends: 14927 [2024-11-16 09:20:29,364 INFO L226 Difference]: Without dead ends: 9378 [2024-11-16 09:20:29,382 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 09:20:29,384 INFO L432 NwaCegarLoop]: 4245 mSDtfsCounter, 4897 mSDsluCounter, 16766 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4914 SdHoareTripleChecker+Valid, 21011 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:29,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4914 Valid, 21011 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:20:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9378 states. [2024-11-16 09:20:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9378 to 7689. [2024-11-16 09:20:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7689 states, 7258 states have (on average 1.580600716450813) internal successors, (11472), 7276 states have internal predecessors, (11472), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-11-16 09:20:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7689 states to 7689 states and 12191 transitions. [2024-11-16 09:20:29,695 INFO L78 Accepts]: Start accepts. Automaton has 7689 states and 12191 transitions. Word has length 150 [2024-11-16 09:20:29,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:29,696 INFO L471 AbstractCegarLoop]: Abstraction has 7689 states and 12191 transitions. [2024-11-16 09:20:29,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:29,696 INFO L276 IsEmpty]: Start isEmpty. Operand 7689 states and 12191 transitions. [2024-11-16 09:20:29,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:29,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:29,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:29,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:20:29,702 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:29,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash -7292467, now seen corresponding path program 1 times [2024-11-16 09:20:29,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:29,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128343231] [2024-11-16 09:20:29,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:29,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:29,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:29,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:29,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:29,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:29,928 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 09:20:29,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:29,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128343231] [2024-11-16 09:20:29,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128343231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:29,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:29,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:29,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955722745] [2024-11-16 09:20:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:29,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:29,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:29,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:29,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:29,931 INFO L87 Difference]: Start difference. First operand 7689 states and 12191 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:32,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:32,947 INFO L93 Difference]: Finished difference Result 21466 states and 33076 transitions. [2024-11-16 09:20:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:32,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:32,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:32,999 INFO L225 Difference]: With dead ends: 21466 [2024-11-16 09:20:33,000 INFO L226 Difference]: Without dead ends: 15917 [2024-11-16 09:20:33,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:33,023 INFO L432 NwaCegarLoop]: 4494 mSDtfsCounter, 5221 mSDsluCounter, 17745 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5237 SdHoareTripleChecker+Valid, 22239 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:33,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5237 Valid, 22239 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:20:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15917 states. [2024-11-16 09:20:33,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15917 to 12948. [2024-11-16 09:20:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12948 states, 12117 states have (on average 1.5309069901790873) internal successors, (18550), 12151 states have internal predecessors, (18550), 599 states have call successors, (599), 198 states have call predecessors, (599), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2024-11-16 09:20:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12948 states to 12948 states and 20023 transitions. [2024-11-16 09:20:33,773 INFO L78 Accepts]: Start accepts. Automaton has 12948 states and 20023 transitions. Word has length 150 [2024-11-16 09:20:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:33,773 INFO L471 AbstractCegarLoop]: Abstraction has 12948 states and 20023 transitions. [2024-11-16 09:20:33,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 12948 states and 20023 transitions. [2024-11-16 09:20:33,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:33,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:33,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:33,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:20:33,785 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:33,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:33,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1910752562, now seen corresponding path program 1 times [2024-11-16 09:20:33,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:33,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291569750] [2024-11-16 09:20:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:33,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:33,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:33,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:33,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:33,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:33,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:33,983 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 09:20:33,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:33,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291569750] [2024-11-16 09:20:33,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291569750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:33,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:33,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:33,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779262583] [2024-11-16 09:20:33,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:33,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:33,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:33,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:33,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:33,986 INFO L87 Difference]: Start difference. First operand 12948 states and 20023 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:37,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:37,634 INFO L93 Difference]: Finished difference Result 44243 states and 67664 transitions. [2024-11-16 09:20:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:20:37,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:37,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:37,755 INFO L225 Difference]: With dead ends: 44243 [2024-11-16 09:20:37,756 INFO L226 Difference]: Without dead ends: 33435 [2024-11-16 09:20:37,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:20:37,801 INFO L432 NwaCegarLoop]: 4492 mSDtfsCounter, 5595 mSDsluCounter, 17737 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5621 SdHoareTripleChecker+Valid, 22229 SdHoareTripleChecker+Invalid, 2694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:37,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5621 Valid, 22229 Invalid, 2694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 09:20:37,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33435 states. [2024-11-16 09:20:38,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33435 to 23397. [2024-11-16 09:20:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23397 states, 21798 states have (on average 1.4992201119368749) internal successors, (32680), 21864 states have internal predecessors, (32680), 1143 states have call successors, (1143), 390 states have call predecessors, (1143), 454 states have return successors, (1936), 1206 states have call predecessors, (1936), 1143 states have call successors, (1936) [2024-11-16 09:20:39,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23397 states to 23397 states and 35759 transitions. [2024-11-16 09:20:39,026 INFO L78 Accepts]: Start accepts. Automaton has 23397 states and 35759 transitions. Word has length 150 [2024-11-16 09:20:39,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:39,026 INFO L471 AbstractCegarLoop]: Abstraction has 23397 states and 35759 transitions. [2024-11-16 09:20:39,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:39,027 INFO L276 IsEmpty]: Start isEmpty. Operand 23397 states and 35759 transitions. [2024-11-16 09:20:39,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:39,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:39,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:39,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:20:39,043 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:39,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:39,044 INFO L85 PathProgramCache]: Analyzing trace with hash -309586515, now seen corresponding path program 1 times [2024-11-16 09:20:39,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:39,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155569522] [2024-11-16 09:20:39,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:39,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,246 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 09:20:39,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:39,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155569522] [2024-11-16 09:20:39,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155569522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:39,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:39,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:39,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304675870] [2024-11-16 09:20:39,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:39,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:39,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:39,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:39,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:39,248 INFO L87 Difference]: Start difference. First operand 23397 states and 35759 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:44,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:44,065 INFO L93 Difference]: Finished difference Result 83520 states and 127890 transitions. [2024-11-16 09:20:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:20:44,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:44,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:44,249 INFO L225 Difference]: With dead ends: 83520 [2024-11-16 09:20:44,249 INFO L226 Difference]: Without dead ends: 62263 [2024-11-16 09:20:44,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:20:44,303 INFO L432 NwaCegarLoop]: 4492 mSDtfsCounter, 5512 mSDsluCounter, 17737 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5538 SdHoareTripleChecker+Valid, 22229 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:44,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5538 Valid, 22229 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:20:44,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62263 states. [2024-11-16 09:20:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62263 to 44327. [2024-11-16 09:20:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44327 states, 41224 states have (on average 1.4821463225305647) internal successors, (61100), 41354 states have internal predecessors, (61100), 2199 states have call successors, (2199), 774 states have call predecessors, (2199), 902 states have return successors, (4514), 2326 states have call predecessors, (4514), 2199 states have call successors, (4514) [2024-11-16 09:20:46,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44327 states to 44327 states and 67813 transitions. [2024-11-16 09:20:46,528 INFO L78 Accepts]: Start accepts. Automaton has 44327 states and 67813 transitions. Word has length 150 [2024-11-16 09:20:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:46,528 INFO L471 AbstractCegarLoop]: Abstraction has 44327 states and 67813 transitions. [2024-11-16 09:20:46,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 44327 states and 67813 transitions. [2024-11-16 09:20:46,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:46,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:46,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:46,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:20:46,566 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:46,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:46,566 INFO L85 PathProgramCache]: Analyzing trace with hash 916659276, now seen corresponding path program 1 times [2024-11-16 09:20:46,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:46,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279605437] [2024-11-16 09:20:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:46,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:46,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:46,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:46,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:46,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:46,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:47,001 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 09:20:47,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:47,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279605437] [2024-11-16 09:20:47,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279605437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:47,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:47,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:47,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85891298] [2024-11-16 09:20:47,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:47,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:47,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:47,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:47,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:47,003 INFO L87 Difference]: Start difference. First operand 44327 states and 67813 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:50,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:50,636 INFO L93 Difference]: Finished difference Result 97633 states and 151642 transitions. [2024-11-16 09:20:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:50,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:50,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:50,842 INFO L225 Difference]: With dead ends: 97633 [2024-11-16 09:20:50,843 INFO L226 Difference]: Without dead ends: 55446 [2024-11-16 09:20:50,936 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 09:20:50,937 INFO L432 NwaCegarLoop]: 4245 mSDtfsCounter, 5030 mSDsluCounter, 12602 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5047 SdHoareTripleChecker+Valid, 16847 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:50,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5047 Valid, 16847 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:20:50,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55446 states. [2024-11-16 09:20:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55446 to 44327. [2024-11-16 09:20:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44327 states, 41224 states have (on average 1.4790170774306228) internal successors, (60971), 41354 states have internal predecessors, (60971), 2199 states have call successors, (2199), 774 states have call predecessors, (2199), 902 states have return successors, (4514), 2326 states have call predecessors, (4514), 2199 states have call successors, (4514) [2024-11-16 09:20:53,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44327 states to 44327 states and 67684 transitions. [2024-11-16 09:20:53,808 INFO L78 Accepts]: Start accepts. Automaton has 44327 states and 67684 transitions. Word has length 150 [2024-11-16 09:20:53,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:53,809 INFO L471 AbstractCegarLoop]: Abstraction has 44327 states and 67684 transitions. [2024-11-16 09:20:53,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:53,809 INFO L276 IsEmpty]: Start isEmpty. Operand 44327 states and 67684 transitions. [2024-11-16 09:20:53,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:20:53,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:53,838 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:53,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:20:53,839 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:53,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash -2091825715, now seen corresponding path program 1 times [2024-11-16 09:20:53,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:53,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128052327] [2024-11-16 09:20:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:53,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:53,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:53,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:20:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:53,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:20:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:54,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:54,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:20:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:54,015 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 09:20:54,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:54,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128052327] [2024-11-16 09:20:54,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128052327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:54,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:54,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:54,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776578333] [2024-11-16 09:20:54,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:54,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:54,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:54,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:54,018 INFO L87 Difference]: Start difference. First operand 44327 states and 67684 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:57,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:57,510 INFO L93 Difference]: Finished difference Result 97503 states and 150995 transitions. [2024-11-16 09:20:57,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:57,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 150 [2024-11-16 09:20:57,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:57,708 INFO L225 Difference]: With dead ends: 97503 [2024-11-16 09:20:57,708 INFO L226 Difference]: Without dead ends: 55316 [2024-11-16 09:20:57,794 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 09:20:57,795 INFO L432 NwaCegarLoop]: 4245 mSDtfsCounter, 5028 mSDsluCounter, 12602 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5045 SdHoareTripleChecker+Valid, 16847 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:57,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5045 Valid, 16847 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:20:57,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55316 states. [2024-11-16 09:21:00,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55316 to 44327. [2024-11-16 09:21:00,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44327 states, 41224 states have (on average 1.4758878323306812) internal successors, (60842), 41354 states have internal predecessors, (60842), 2199 states have call successors, (2199), 774 states have call predecessors, (2199), 902 states have return successors, (4514), 2326 states have call predecessors, (4514), 2199 states have call successors, (4514) [2024-11-16 09:21:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44327 states to 44327 states and 67555 transitions. [2024-11-16 09:21:00,329 INFO L78 Accepts]: Start accepts. Automaton has 44327 states and 67555 transitions. Word has length 150 [2024-11-16 09:21:00,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:21:00,330 INFO L471 AbstractCegarLoop]: Abstraction has 44327 states and 67555 transitions. [2024-11-16 09:21:00,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:21:00,330 INFO L276 IsEmpty]: Start isEmpty. Operand 44327 states and 67555 transitions. [2024-11-16 09:21:00,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 09:21:00,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:21:00,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:21:00,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:21:00,364 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:21:00,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:21:00,365 INFO L85 PathProgramCache]: Analyzing trace with hash -110663636, now seen corresponding path program 1 times [2024-11-16 09:21:00,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:21:00,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478202690] [2024-11-16 09:21:00,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:21:00,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:21:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:21:00,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:21:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:21:00,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 09:21:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:21:00,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 09:21:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:21:00,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:21:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:21:00,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:21:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:21:00,619 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 09:21:00,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:21:00,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478202690] [2024-11-16 09:21:00,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478202690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:21:00,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:21:00,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:21:00,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259345988] [2024-11-16 09:21:00,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:21:00,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:21:00,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:21:00,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:21:00,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:21:00,621 INFO L87 Difference]: Start difference. First operand 44327 states and 67555 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)