./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.07.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.07.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5738c99ca39a13f327ff059e5a6f3b47670e1701984219677e7b62ff58bbdc65 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:06:48,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:06:48,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:06:48,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:06:48,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:06:48,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:06:48,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:06:48,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:06:48,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:06:48,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:06:48,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:06:48,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:06:48,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:06:48,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:06:48,264 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:06:48,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:06:48,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:06:48,265 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:06:48,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:06:48,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:06:48,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:06:48,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:06:48,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:06:48,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:06:48,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:06:48,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:06:48,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:06:48,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:06:48,272 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:06:48,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:06:48,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:06:48,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:06:48,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:06:48,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:06:48,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:06:48,274 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:06:48,274 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:06:48,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:06:48,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:06:48,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:06:48,276 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:06:48,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:06:48,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5738c99ca39a13f327ff059e5a6f3b47670e1701984219677e7b62ff58bbdc65 [2024-11-16 09:06:48,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:06:48,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:06:48,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:06:48,544 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:06:48,545 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:06:48,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.07.cil-2.c [2024-11-16 09:06:50,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:06:50,691 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:06:50,692 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.07.cil-2.c [2024-11-16 09:06:50,753 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a24c8e4e8/43b624d3239c49e7a198110a600d823c/FLAGb4d64b40a [2024-11-16 09:06:50,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a24c8e4e8/43b624d3239c49e7a198110a600d823c [2024-11-16 09:06:50,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:06:50,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:06:50,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:06:50,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:06:50,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:06:50,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:06:50" (1/1) ... [2024-11-16 09:06:50,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59591a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:50, skipping insertion in model container [2024-11-16 09:06:50,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:06:50" (1/1) ... [2024-11-16 09:06:50,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:06:52,673 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.07.cil-2.c[378560,378573] [2024-11-16 09:06:52,701 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.07.cil-2.c[383339,383352] [2024-11-16 09:06:52,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:06:52,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:06:53,745 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.07.cil-2.c[378560,378573] [2024-11-16 09:06:53,752 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.07.cil-2.c[383339,383352] [2024-11-16 09:06:53,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:06:53,875 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:06:53,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53 WrapperNode [2024-11-16 09:06:53,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:06:53,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:06:53,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:06:53,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:06:53,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:53,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,280 INFO L138 Inliner]: procedures = 58, calls = 63, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 12928 [2024-11-16 09:06:54,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:06:54,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:06:54,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:06:54,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:06:54,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,590 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:06:54,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,739 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:06:54,938 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:06:54,938 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:06:54,939 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:06:54,944 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (1/1) ... [2024-11-16 09:06:54,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:06:54,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:55,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:06:55,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:06:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:06:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:06:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:06:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:06:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:06:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:06:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:06:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:06:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:06:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:06:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:06:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:06:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:06:55,309 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:06:55,320 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:07:02,533 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:07:02,534 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:07:02,535 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:07:02,536 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:07:02,536 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:07:02,536 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:07:02,536 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:07:02,873 INFO L? ?]: Removed 1729 outVars from TransFormulas that were not future-live. [2024-11-16 09:07:02,874 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:07:02,930 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:07:02,930 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:07:02,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:07:02 BoogieIcfgContainer [2024-11-16 09:07:02,931 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:07:02,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:07:02,933 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:07:02,936 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:07:02,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:06:50" (1/3) ... [2024-11-16 09:07:02,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f55f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:07:02, skipping insertion in model container [2024-11-16 09:07:02,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:53" (2/3) ... [2024-11-16 09:07:02,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f55f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:07:02, skipping insertion in model container [2024-11-16 09:07:02,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:07:02" (3/3) ... [2024-11-16 09:07:02,939 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.07.cil-2.c [2024-11-16 09:07:02,954 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:07:02,955 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:07:03,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:07:03,096 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;@37929698, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:07:03,096 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:07:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 2499 states, 2466 states have (on average 1.832522303325223) internal successors, (4519), 2471 states have internal predecessors, (4519), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 09:07:03,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:03,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:03,138 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] [2024-11-16 09:07:03,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:03,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:03,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1274993052, now seen corresponding path program 1 times [2024-11-16 09:07:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535357573] [2024-11-16 09:07:03,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:03,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:03,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:03,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:03,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:03,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:03,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:03,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:03,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535357573] [2024-11-16 09:07:03,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535357573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:03,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:03,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:03,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423997636] [2024-11-16 09:07:03,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:03,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:03,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:03,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:03,979 INFO L87 Difference]: Start difference. First operand has 2499 states, 2466 states have (on average 1.832522303325223) internal successors, (4519), 2471 states have internal predecessors, (4519), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:05,587 INFO L93 Difference]: Finished difference Result 5073 states and 9275 transitions. [2024-11-16 09:07:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:05,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:05,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:05,623 INFO L225 Difference]: With dead ends: 5073 [2024-11-16 09:07:05,624 INFO L226 Difference]: Without dead ends: 2523 [2024-11-16 09:07:05,639 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 09:07:05,642 INFO L432 NwaCegarLoop]: 4276 mSDtfsCounter, 4797 mSDsluCounter, 16910 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4812 SdHoareTripleChecker+Valid, 21186 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:05,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4812 Valid, 21186 Invalid, 1264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:07:05,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2024-11-16 09:07:05,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2420. [2024-11-16 09:07:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2389 states have (on average 1.8229384679782337) internal successors, (4355), 2392 states have internal predecessors, (4355), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:07:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 4399 transitions. [2024-11-16 09:07:05,899 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 4399 transitions. Word has length 129 [2024-11-16 09:07:05,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:05,899 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 4399 transitions. [2024-11-16 09:07:05,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:05,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 4399 transitions. [2024-11-16 09:07:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:05,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:05,904 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] [2024-11-16 09:07:05,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:07:05,905 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:05,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:05,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1938165957, now seen corresponding path program 1 times [2024-11-16 09:07:05,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:05,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999777849] [2024-11-16 09:07:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:05,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:06,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:06,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:06,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:06,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:06,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:06,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:06,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999777849] [2024-11-16 09:07:06,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999777849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:06,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:06,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503628478] [2024-11-16 09:07:06,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:06,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:06,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:06,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:06,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:06,336 INFO L87 Difference]: Start difference. First operand 2420 states and 4399 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:08,923 INFO L93 Difference]: Finished difference Result 3179 states and 5572 transitions. [2024-11-16 09:07:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:08,941 INFO L225 Difference]: With dead ends: 3179 [2024-11-16 09:07:08,942 INFO L226 Difference]: Without dead ends: 2897 [2024-11-16 09:07:08,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:08,948 INFO L432 NwaCegarLoop]: 4429 mSDtfsCounter, 4951 mSDsluCounter, 17493 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4965 SdHoareTripleChecker+Valid, 21922 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:08,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4965 Valid, 21922 Invalid, 2422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 2362 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:07:08,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-16 09:07:09,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2711. [2024-11-16 09:07:09,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2654 states have (on average 1.790504898266767) internal successors, (4752), 2659 states have internal predecessors, (4752), 41 states have call successors, (41), 13 states have call predecessors, (41), 14 states have return successors, (46), 40 states have call predecessors, (46), 39 states have call successors, (46) [2024-11-16 09:07:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 4839 transitions. [2024-11-16 09:07:09,151 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 4839 transitions. Word has length 129 [2024-11-16 09:07:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:09,153 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 4839 transitions. [2024-11-16 09:07:09,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 4839 transitions. [2024-11-16 09:07:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:09,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:09,158 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] [2024-11-16 09:07:09,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:07:09,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:09,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:09,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1837509052, now seen corresponding path program 1 times [2024-11-16 09:07:09,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:09,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775565748] [2024-11-16 09:07:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:09,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:09,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:09,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:09,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:09,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:09,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:09,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:09,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775565748] [2024-11-16 09:07:09,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775565748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:09,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:09,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753652851] [2024-11-16 09:07:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:09,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:09,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:09,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:09,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:09,447 INFO L87 Difference]: Start difference. First operand 2711 states and 4839 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:11,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:11,643 INFO L93 Difference]: Finished difference Result 4157 states and 7054 transitions. [2024-11-16 09:07:11,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:11,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:11,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:11,664 INFO L225 Difference]: With dead ends: 4157 [2024-11-16 09:07:11,664 INFO L226 Difference]: Without dead ends: 3586 [2024-11-16 09:07:11,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:11,672 INFO L432 NwaCegarLoop]: 4384 mSDtfsCounter, 4955 mSDsluCounter, 17423 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21807 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:11,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21807 Invalid, 2303 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 09:07:11,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2024-11-16 09:07:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3254. [2024-11-16 09:07:11,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3151 states have (on average 1.7400825134877818) internal successors, (5483), 3158 states have internal predecessors, (5483), 73 states have call successors, (73), 25 states have call predecessors, (73), 28 states have return successors, (88), 74 states have call predecessors, (88), 71 states have call successors, (88) [2024-11-16 09:07:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 5644 transitions. [2024-11-16 09:07:11,809 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 5644 transitions. Word has length 129 [2024-11-16 09:07:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:11,809 INFO L471 AbstractCegarLoop]: Abstraction has 3254 states and 5644 transitions. [2024-11-16 09:07:11,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 5644 transitions. [2024-11-16 09:07:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:11,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:11,815 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] [2024-11-16 09:07:11,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:07:11,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:11,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash 850926363, now seen corresponding path program 1 times [2024-11-16 09:07:11,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:11,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016029416] [2024-11-16 09:07:11,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:11,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:12,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:12,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:12,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:12,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:12,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016029416] [2024-11-16 09:07:12,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016029416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:12,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:12,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:12,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104708251] [2024-11-16 09:07:12,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:12,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:12,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:12,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:12,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:12,073 INFO L87 Difference]: Start difference. First operand 3254 states and 5644 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:14,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:14,186 INFO L93 Difference]: Finished difference Result 6076 states and 9955 transitions. [2024-11-16 09:07:14,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:14,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:14,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:14,210 INFO L225 Difference]: With dead ends: 6076 [2024-11-16 09:07:14,211 INFO L226 Difference]: Without dead ends: 4962 [2024-11-16 09:07:14,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:14,220 INFO L432 NwaCegarLoop]: 4387 mSDtfsCounter, 4955 mSDsluCounter, 17423 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21810 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:14,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21810 Invalid, 2309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2241 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 09:07:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2024-11-16 09:07:14,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 4343. [2024-11-16 09:07:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 4148 states have (on average 1.67526518804243) internal successors, (6949), 4159 states have internal predecessors, (6949), 137 states have call successors, (137), 49 states have call predecessors, (137), 56 states have return successors, (178), 142 states have call predecessors, (178), 135 states have call successors, (178) [2024-11-16 09:07:14,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 7264 transitions. [2024-11-16 09:07:14,377 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 7264 transitions. Word has length 129 [2024-11-16 09:07:14,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:14,377 INFO L471 AbstractCegarLoop]: Abstraction has 4343 states and 7264 transitions. [2024-11-16 09:07:14,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:14,378 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 7264 transitions. [2024-11-16 09:07:14,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:14,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:14,381 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] [2024-11-16 09:07:14,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:07:14,381 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:14,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:14,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1927479772, now seen corresponding path program 1 times [2024-11-16 09:07:14,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:14,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370831728] [2024-11-16 09:07:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:14,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:14,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:14,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370831728] [2024-11-16 09:07:14,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370831728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:14,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:14,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:14,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845892051] [2024-11-16 09:07:14,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:14,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:14,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:14,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:14,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:14,590 INFO L87 Difference]: Start difference. First operand 4343 states and 7264 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:16,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:16,730 INFO L93 Difference]: Finished difference Result 9913 states and 15773 transitions. [2024-11-16 09:07:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:16,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:16,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:16,765 INFO L225 Difference]: With dead ends: 9913 [2024-11-16 09:07:16,766 INFO L226 Difference]: Without dead ends: 7710 [2024-11-16 09:07:16,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:16,775 INFO L432 NwaCegarLoop]: 4384 mSDtfsCounter, 4955 mSDsluCounter, 17423 mSDsCounter, 0 mSdLazyCounter, 2217 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21807 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:16,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21807 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2217 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:07:16,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7710 states. [2024-11-16 09:07:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7710 to 6528. [2024-11-16 09:07:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6528 states, 6149 states have (on average 1.6085542364612133) internal successors, (9891), 6168 states have internal predecessors, (9891), 265 states have call successors, (265), 97 states have call predecessors, (265), 112 states have return successors, (376), 278 states have call predecessors, (376), 263 states have call successors, (376) [2024-11-16 09:07:17,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6528 states to 6528 states and 10532 transitions. [2024-11-16 09:07:17,012 INFO L78 Accepts]: Start accepts. Automaton has 6528 states and 10532 transitions. Word has length 129 [2024-11-16 09:07:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:17,012 INFO L471 AbstractCegarLoop]: Abstraction has 6528 states and 10532 transitions. [2024-11-16 09:07:17,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:17,013 INFO L276 IsEmpty]: Start isEmpty. Operand 6528 states and 10532 transitions. [2024-11-16 09:07:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:17,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:17,018 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] [2024-11-16 09:07:17,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:07:17,018 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:17,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:17,019 INFO L85 PathProgramCache]: Analyzing trace with hash -531644677, now seen corresponding path program 1 times [2024-11-16 09:07:17,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:17,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513885073] [2024-11-16 09:07:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:17,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:17,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:17,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513885073] [2024-11-16 09:07:17,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513885073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:17,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:17,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:17,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972842431] [2024-11-16 09:07:17,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:17,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:17,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:17,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:17,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:17,229 INFO L87 Difference]: Start difference. First operand 6528 states and 10532 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:19,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:19,586 INFO L93 Difference]: Finished difference Result 17586 states and 27467 transitions. [2024-11-16 09:07:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:19,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:19,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:19,646 INFO L225 Difference]: With dead ends: 17586 [2024-11-16 09:07:19,646 INFO L226 Difference]: Without dead ends: 13198 [2024-11-16 09:07:19,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:19,666 INFO L432 NwaCegarLoop]: 4386 mSDtfsCounter, 4955 mSDsluCounter, 17423 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21809 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:19,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21809 Invalid, 2286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:07:19,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13198 states. [2024-11-16 09:07:20,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13198 to 10913. [2024-11-16 09:07:20,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10913 states, 10166 states have (on average 1.5539051741097778) internal successors, (15797), 10201 states have internal predecessors, (15797), 521 states have call successors, (521), 193 states have call predecessors, (521), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:07:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10913 states to 10913 states and 17144 transitions. [2024-11-16 09:07:20,312 INFO L78 Accepts]: Start accepts. Automaton has 10913 states and 17144 transitions. Word has length 129 [2024-11-16 09:07:20,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:20,313 INFO L471 AbstractCegarLoop]: Abstraction has 10913 states and 17144 transitions. [2024-11-16 09:07:20,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:20,315 INFO L276 IsEmpty]: Start isEmpty. Operand 10913 states and 17144 transitions. [2024-11-16 09:07:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:20,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:20,324 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] [2024-11-16 09:07:20,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:07:20,324 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:20,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:20,325 INFO L85 PathProgramCache]: Analyzing trace with hash -472423940, now seen corresponding path program 1 times [2024-11-16 09:07:20,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:20,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812446998] [2024-11-16 09:07:20,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:20,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:20,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:20,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:20,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:20,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:20,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:20,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:20,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812446998] [2024-11-16 09:07:20,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812446998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:20,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:20,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:20,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988145295] [2024-11-16 09:07:20,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:20,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:20,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:20,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:20,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:20,543 INFO L87 Difference]: Start difference. First operand 10913 states and 17144 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:21,820 INFO L93 Difference]: Finished difference Result 22096 states and 34535 transitions. [2024-11-16 09:07:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:21,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:21,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:21,870 INFO L225 Difference]: With dead ends: 22096 [2024-11-16 09:07:21,870 INFO L226 Difference]: Without dead ends: 13321 [2024-11-16 09:07:21,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:21,897 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4845 mSDsluCounter, 12502 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4860 SdHoareTripleChecker+Valid, 16709 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:21,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4860 Valid, 16709 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:07:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13321 states. [2024-11-16 09:07:22,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13321 to 10913. [2024-11-16 09:07:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10913 states, 10166 states have (on average 1.5506590596104664) internal successors, (15764), 10201 states have internal predecessors, (15764), 521 states have call successors, (521), 193 states have call predecessors, (521), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:07:22,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10913 states to 10913 states and 17111 transitions. [2024-11-16 09:07:22,335 INFO L78 Accepts]: Start accepts. Automaton has 10913 states and 17111 transitions. Word has length 129 [2024-11-16 09:07:22,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:22,337 INFO L471 AbstractCegarLoop]: Abstraction has 10913 states and 17111 transitions. [2024-11-16 09:07:22,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:22,338 INFO L276 IsEmpty]: Start isEmpty. Operand 10913 states and 17111 transitions. [2024-11-16 09:07:22,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:22,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:22,347 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] [2024-11-16 09:07:22,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:07:22,348 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:22,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:22,348 INFO L85 PathProgramCache]: Analyzing trace with hash 222223067, now seen corresponding path program 1 times [2024-11-16 09:07:22,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:22,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962061328] [2024-11-16 09:07:22,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:22,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:22,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:22,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:22,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:22,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:22,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:22,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:22,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962061328] [2024-11-16 09:07:22,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962061328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:22,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:22,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:22,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841461692] [2024-11-16 09:07:22,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:22,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:22,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:22,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:22,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:22,556 INFO L87 Difference]: Start difference. First operand 10913 states and 17111 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:24,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:24,091 INFO L93 Difference]: Finished difference Result 22032 states and 34310 transitions. [2024-11-16 09:07:24,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:24,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:24,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:24,132 INFO L225 Difference]: With dead ends: 22032 [2024-11-16 09:07:24,132 INFO L226 Difference]: Without dead ends: 13257 [2024-11-16 09:07:24,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:24,158 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4732 mSDsluCounter, 16636 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 20843 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:24,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 20843 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:07:24,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13257 states. [2024-11-16 09:07:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13257 to 10913. [2024-11-16 09:07:24,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10913 states, 10166 states have (on average 1.547412945111155) internal successors, (15731), 10201 states have internal predecessors, (15731), 521 states have call successors, (521), 193 states have call predecessors, (521), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:07:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10913 states to 10913 states and 17078 transitions. [2024-11-16 09:07:24,604 INFO L78 Accepts]: Start accepts. Automaton has 10913 states and 17078 transitions. Word has length 129 [2024-11-16 09:07:24,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:24,606 INFO L471 AbstractCegarLoop]: Abstraction has 10913 states and 17078 transitions. [2024-11-16 09:07:24,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:24,607 INFO L276 IsEmpty]: Start isEmpty. Operand 10913 states and 17078 transitions. [2024-11-16 09:07:24,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:24,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:24,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:24,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:07:24,616 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:24,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash -711131270, now seen corresponding path program 1 times [2024-11-16 09:07:24,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:24,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38688850] [2024-11-16 09:07:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:24,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:24,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:24,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38688850] [2024-11-16 09:07:24,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38688850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:24,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:24,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:24,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275949592] [2024-11-16 09:07:24,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:24,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:24,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:24,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:24,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:24,827 INFO L87 Difference]: Start difference. First operand 10913 states and 17078 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:27,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:27,594 INFO L93 Difference]: Finished difference Result 35459 states and 54567 transitions. [2024-11-16 09:07:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:07:27,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:27,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:27,687 INFO L225 Difference]: With dead ends: 35459 [2024-11-16 09:07:27,687 INFO L226 Difference]: Without dead ends: 26686 [2024-11-16 09:07:27,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:07:27,722 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5182 mSDsluCounter, 17446 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5204 SdHoareTripleChecker+Valid, 21856 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:27,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5204 Valid, 21856 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:07:27,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26686 states. [2024-11-16 09:07:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26686 to 19713. [2024-11-16 09:07:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19713 states, 18262 states have (on average 1.5106779104150696) internal successors, (27588), 18329 states have internal predecessors, (27588), 1001 states have call successors, (1001), 385 states have call predecessors, (1001), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:07:29,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19713 states to 19713 states and 30445 transitions. [2024-11-16 09:07:29,049 INFO L78 Accepts]: Start accepts. Automaton has 19713 states and 30445 transitions. Word has length 129 [2024-11-16 09:07:29,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:29,049 INFO L471 AbstractCegarLoop]: Abstraction has 19713 states and 30445 transitions. [2024-11-16 09:07:29,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 19713 states and 30445 transitions. [2024-11-16 09:07:29,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:29,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:29,066 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] [2024-11-16 09:07:29,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:07:29,066 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:29,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:29,067 INFO L85 PathProgramCache]: Analyzing trace with hash 782781179, now seen corresponding path program 1 times [2024-11-16 09:07:29,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:29,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659026532] [2024-11-16 09:07:29,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:29,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:29,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:29,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659026532] [2024-11-16 09:07:29,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659026532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:29,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:29,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:29,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398241655] [2024-11-16 09:07:29,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:29,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:29,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:29,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:29,250 INFO L87 Difference]: Start difference. First operand 19713 states and 30445 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:31,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:31,139 INFO L93 Difference]: Finished difference Result 41680 states and 64664 transitions. [2024-11-16 09:07:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:31,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:31,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:31,222 INFO L225 Difference]: With dead ends: 41680 [2024-11-16 09:07:31,222 INFO L226 Difference]: Without dead ends: 24105 [2024-11-16 09:07:31,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:31,265 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4838 mSDsluCounter, 12500 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 16707 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:31,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4853 Valid, 16707 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:07:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24105 states. [2024-11-16 09:07:32,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24105 to 19713. [2024-11-16 09:07:32,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19713 states, 18262 states have (on average 1.5071186069433797) internal successors, (27523), 18329 states have internal predecessors, (27523), 1001 states have call successors, (1001), 385 states have call predecessors, (1001), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:07:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19713 states to 19713 states and 30380 transitions. [2024-11-16 09:07:32,280 INFO L78 Accepts]: Start accepts. Automaton has 19713 states and 30380 transitions. Word has length 129 [2024-11-16 09:07:32,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:32,280 INFO L471 AbstractCegarLoop]: Abstraction has 19713 states and 30380 transitions. [2024-11-16 09:07:32,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:32,281 INFO L276 IsEmpty]: Start isEmpty. Operand 19713 states and 30380 transitions. [2024-11-16 09:07:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:32,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:32,299 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] [2024-11-16 09:07:32,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:07:32,300 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:32,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:32,300 INFO L85 PathProgramCache]: Analyzing trace with hash -415954086, now seen corresponding path program 1 times [2024-11-16 09:07:32,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:32,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941152992] [2024-11-16 09:07:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:32,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:32,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:32,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:32,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:32,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:32,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:32,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:32,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941152992] [2024-11-16 09:07:32,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941152992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:32,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:32,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:32,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653490555] [2024-11-16 09:07:32,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:32,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:32,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:32,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:32,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:32,472 INFO L87 Difference]: Start difference. First operand 19713 states and 30380 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:34,246 INFO L93 Difference]: Finished difference Result 41616 states and 64342 transitions. [2024-11-16 09:07:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:34,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:34,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:34,308 INFO L225 Difference]: With dead ends: 41616 [2024-11-16 09:07:34,308 INFO L226 Difference]: Without dead ends: 24041 [2024-11-16 09:07:34,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:34,341 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4836 mSDsluCounter, 12500 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4851 SdHoareTripleChecker+Valid, 16707 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:34,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4851 Valid, 16707 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:07:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24041 states. [2024-11-16 09:07:35,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24041 to 19713. [2024-11-16 09:07:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19713 states, 18262 states have (on average 1.5035593034716899) internal successors, (27458), 18329 states have internal predecessors, (27458), 1001 states have call successors, (1001), 385 states have call predecessors, (1001), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:07:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19713 states to 19713 states and 30315 transitions. [2024-11-16 09:07:35,420 INFO L78 Accepts]: Start accepts. Automaton has 19713 states and 30315 transitions. Word has length 129 [2024-11-16 09:07:35,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:35,420 INFO L471 AbstractCegarLoop]: Abstraction has 19713 states and 30315 transitions. [2024-11-16 09:07:35,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:35,421 INFO L276 IsEmpty]: Start isEmpty. Operand 19713 states and 30315 transitions. [2024-11-16 09:07:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:35,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:35,443 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] [2024-11-16 09:07:35,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:07:35,443 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:35,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:35,444 INFO L85 PathProgramCache]: Analyzing trace with hash 99566363, now seen corresponding path program 1 times [2024-11-16 09:07:35,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:35,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773930105] [2024-11-16 09:07:35,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:35,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:35,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:35,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:35,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:35,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:35,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:35,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:35,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773930105] [2024-11-16 09:07:35,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773930105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:35,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:35,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:35,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805072102] [2024-11-16 09:07:35,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:35,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:35,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:35,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:35,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:35,671 INFO L87 Difference]: Start difference. First operand 19713 states and 30315 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:39,594 INFO L93 Difference]: Finished difference Result 65667 states and 100718 transitions. [2024-11-16 09:07:39,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:07:39,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:39,736 INFO L225 Difference]: With dead ends: 65667 [2024-11-16 09:07:39,736 INFO L226 Difference]: Without dead ends: 48094 [2024-11-16 09:07:39,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:07:39,783 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5062 mSDsluCounter, 17418 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5084 SdHoareTripleChecker+Valid, 21806 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:39,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5084 Valid, 21806 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:07:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48094 states. [2024-11-16 09:07:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48094 to 37409. [2024-11-16 09:07:41,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37409 states, 34582 states have (on average 1.480654675842924) internal successors, (51204), 34713 states have internal predecessors, (51204), 1929 states have call successors, (1929), 769 states have call predecessors, (1929), 896 states have return successors, (4370), 2054 states have call predecessors, (4370), 1927 states have call successors, (4370) [2024-11-16 09:07:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37409 states to 37409 states and 57503 transitions. [2024-11-16 09:07:41,528 INFO L78 Accepts]: Start accepts. Automaton has 37409 states and 57503 transitions. Word has length 129 [2024-11-16 09:07:41,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:41,528 INFO L471 AbstractCegarLoop]: Abstraction has 37409 states and 57503 transitions. [2024-11-16 09:07:41,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 37409 states and 57503 transitions. [2024-11-16 09:07:41,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:41,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:41,557 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] [2024-11-16 09:07:41,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:07:41,557 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:41,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:41,558 INFO L85 PathProgramCache]: Analyzing trace with hash -853635270, now seen corresponding path program 1 times [2024-11-16 09:07:41,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:41,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19577241] [2024-11-16 09:07:41,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:41,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:41,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:41,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:41,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:41,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:41,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:41,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:41,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19577241] [2024-11-16 09:07:41,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19577241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:41,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:41,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:41,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427531652] [2024-11-16 09:07:41,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:41,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:41,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:41,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:41,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:41,708 INFO L87 Difference]: Start difference. First operand 37409 states and 57503 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:44,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:44,976 INFO L93 Difference]: Finished difference Result 80720 states and 125646 transitions. [2024-11-16 09:07:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:44,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:44,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:45,092 INFO L225 Difference]: With dead ends: 80720 [2024-11-16 09:07:45,092 INFO L226 Difference]: Without dead ends: 45449 [2024-11-16 09:07:45,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:45,145 INFO L432 NwaCegarLoop]: 4207 mSDtfsCounter, 4728 mSDsluCounter, 16636 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 20843 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:45,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 20843 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:07:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45449 states. [2024-11-16 09:07:47,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45449 to 37409. [2024-11-16 09:07:47,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37409 states, 34582 states have (on average 1.4769244115435776) internal successors, (51075), 34713 states have internal predecessors, (51075), 1929 states have call successors, (1929), 769 states have call predecessors, (1929), 896 states have return successors, (4370), 2054 states have call predecessors, (4370), 1927 states have call successors, (4370) [2024-11-16 09:07:47,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37409 states to 37409 states and 57374 transitions. [2024-11-16 09:07:47,604 INFO L78 Accepts]: Start accepts. Automaton has 37409 states and 57374 transitions. Word has length 129 [2024-11-16 09:07:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:47,605 INFO L471 AbstractCegarLoop]: Abstraction has 37409 states and 57374 transitions. [2024-11-16 09:07:47,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:47,605 INFO L276 IsEmpty]: Start isEmpty. Operand 37409 states and 57374 transitions. [2024-11-16 09:07:47,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:47,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:47,637 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] [2024-11-16 09:07:47,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:07:47,638 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:47,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:47,638 INFO L85 PathProgramCache]: Analyzing trace with hash -53099717, now seen corresponding path program 1 times [2024-11-16 09:07:47,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:47,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540966647] [2024-11-16 09:07:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:47,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:47,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:47,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:47,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:47,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:47,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:47,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540966647] [2024-11-16 09:07:47,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540966647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:47,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:47,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:47,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261863426] [2024-11-16 09:07:47,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:47,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:47,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:47,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:47,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:47,855 INFO L87 Difference]: Start difference. First operand 37409 states and 57374 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:53,923 INFO L93 Difference]: Finished difference Result 125027 states and 193210 transitions. [2024-11-16 09:07:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:07:53,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 129 [2024-11-16 09:07:53,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:54,297 INFO L225 Difference]: With dead ends: 125027 [2024-11-16 09:07:54,297 INFO L226 Difference]: Without dead ends: 89758 [2024-11-16 09:07:54,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:07:54,355 INFO L432 NwaCegarLoop]: 4386 mSDtfsCounter, 4978 mSDsluCounter, 17418 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 21804 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:54,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 21804 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:07:54,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89758 states. [2024-11-16 09:07:58,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89758 to 72865. [2024-11-16 09:07:58,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72865 states, 67350 states have (on average 1.46445434298441) internal successors, (98631), 67609 states have internal predecessors, (98631), 3721 states have call successors, (3721), 1537 states have call predecessors, (3721), 1792 states have return successors, (10792), 3974 states have call predecessors, (10792), 3719 states have call successors, (10792) [2024-11-16 09:07:58,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72865 states to 72865 states and 113144 transitions. [2024-11-16 09:07:58,412 INFO L78 Accepts]: Start accepts. Automaton has 72865 states and 113144 transitions. Word has length 129 [2024-11-16 09:07:58,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:58,412 INFO L471 AbstractCegarLoop]: Abstraction has 72865 states and 113144 transitions. [2024-11-16 09:07:58,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:58,412 INFO L276 IsEmpty]: Start isEmpty. Operand 72865 states and 113144 transitions. [2024-11-16 09:07:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 09:07:58,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:58,451 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] [2024-11-16 09:07:58,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:07:58,451 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:58,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:58,452 INFO L85 PathProgramCache]: Analyzing trace with hash -581465318, now seen corresponding path program 1 times [2024-11-16 09:07:58,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:58,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077722055] [2024-11-16 09:07:58,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:58,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:58,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:58,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:07:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:58,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:07:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:58,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:07:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:58,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:07:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:58,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:58,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077722055] [2024-11-16 09:07:58,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077722055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:58,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:58,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:07:58,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104583420] [2024-11-16 09:07:58,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:58,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:07:58,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:58,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:07:58,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:07:58,594 INFO L87 Difference]: Start difference. First operand 72865 states and 113144 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)