./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.10.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.10.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 350eaf2863f602bf9d6d43c31d190808a06f274c6c222054e38d4c11a80535eb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:19:52,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:19:52,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:19:52,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:19:52,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:19:53,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:19:53,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:19:53,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:19:53,017 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:19:53,017 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:19:53,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:19:53,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:19:53,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:19:53,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:19:53,018 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:19:53,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:19:53,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:19:53,019 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:19:53,020 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:19:53,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:19:53,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:19:53,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:19:53,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:19:53,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:19:53,021 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:19:53,022 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:19:53,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:19:53,022 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:19:53,022 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:19:53,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:19:53,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:19:53,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:19:53,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:19:53,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:19:53,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:19:53,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:19:53,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:19:53,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:19:53,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:19:53,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:19:53,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:19:53,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:19:53,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 350eaf2863f602bf9d6d43c31d190808a06f274c6c222054e38d4c11a80535eb [2024-11-16 09:19:53,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:19:53,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:19:53,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:19:53,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:19:53,246 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:19:53,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.10.cil-1.c [2024-11-16 09:19:54,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:19:54,985 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:19:54,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.10.cil-1.c [2024-11-16 09:19:55,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d18e864/6b4b24e38ae84e68bbeae8e07b90421a/FLAGc0610ba38 [2024-11-16 09:19:55,119 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d18e864/6b4b24e38ae84e68bbeae8e07b90421a [2024-11-16 09:19:55,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:19:55,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:19:55,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:19:55,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:19:55,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:19:55,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:19:55" (1/1) ... [2024-11-16 09:19:55,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f22d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:55, skipping insertion in model container [2024-11-16 09:19:55,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:19:55" (1/1) ... [2024-11-16 09:19:55,312 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:19:56,560 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.10.cil-1.c[380593,380606] [2024-11-16 09:19:56,589 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.10.cil-1.c[383339,383352] [2024-11-16 09:19:56,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:19:56,841 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:19:57,427 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.10.cil-1.c[380593,380606] [2024-11-16 09:19:57,432 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.10.cil-1.c[383339,383352] [2024-11-16 09:19:57,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:19:57,492 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:19:57,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57 WrapperNode [2024-11-16 09:19:57,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:19:57,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:19:57,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:19:57,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:19:57,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:57,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:57,950 INFO L138 Inliner]: procedures = 64, calls = 72, calls flagged for inlining = 41, calls inlined = 41, statements flattened = 13105 [2024-11-16 09:19:57,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:19:57,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:19:57,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:19:57,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:19:57,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:57,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,051 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,126 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:19:58,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,303 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:19:58,461 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:19:58,463 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:19:58,463 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:19:58,464 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (1/1) ... [2024-11-16 09:19:58,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:19:58,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:19:58,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:19:58,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:19:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:19:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:19:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:19:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:19:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:19:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:19:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:19:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:19:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:19:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:19:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:19:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:19:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:19:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:19:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:19:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:19:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:19:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:19:58,690 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:19:58,692 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:20:05,474 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:20:05,475 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:20:05,475 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:20:05,476 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:20:05,476 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:20:05,476 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:20:05,477 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:20:05,713 INFO L? ?]: Removed 1747 outVars from TransFormulas that were not future-live. [2024-11-16 09:20:05,714 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:20:05,771 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:20:05,772 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:20:05,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:20:05 BoogieIcfgContainer [2024-11-16 09:20:05,772 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:20:05,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:20:05,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:20:05,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:20:05,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:19:55" (1/3) ... [2024-11-16 09:20:05,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f58f57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:20:05, skipping insertion in model container [2024-11-16 09:20:05,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:57" (2/3) ... [2024-11-16 09:20:05,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f58f57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:20:05, skipping insertion in model container [2024-11-16 09:20:05,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:20:05" (3/3) ... [2024-11-16 09:20:05,780 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.10.cil-1.c [2024-11-16 09:20:05,791 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:20:05,792 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:20:05,895 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:20:05,904 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;@192e5044, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:20:05,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:20:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 2589 states, 2553 states have (on average 1.8241284763023893) internal successors, (4657), 2558 states have internal predecessors, (4657), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 09:20:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:05,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:05,932 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:05,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:05,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1652053367, now seen corresponding path program 1 times [2024-11-16 09:20:05,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:05,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399421150] [2024-11-16 09:20:05,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:05,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:06,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:06,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399421150] [2024-11-16 09:20:06,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399421150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:06,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:06,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:20:06,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842021736] [2024-11-16 09:20:06,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:06,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:20:06,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:06,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:20:06,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:20:06,542 INFO L87 Difference]: Start difference. First operand has 2589 states, 2553 states have (on average 1.8241284763023893) internal successors, (4657), 2558 states have internal predecessors, (4657), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:09,402 INFO L93 Difference]: Finished difference Result 5770 states and 10393 transitions. [2024-11-16 09:20:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:20:09,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:09,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:09,427 INFO L225 Difference]: With dead ends: 5770 [2024-11-16 09:20:09,430 INFO L226 Difference]: Without dead ends: 3127 [2024-11-16 09:20:09,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:20:09,443 INFO L432 NwaCegarLoop]: 4366 mSDtfsCounter, 5429 mSDsluCounter, 13156 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5446 SdHoareTripleChecker+Valid, 17522 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:09,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5446 Valid, 17522 Invalid, 2046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 09:20:09,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2024-11-16 09:20:09,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 2885. [2024-11-16 09:20:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 2825 states have (on average 1.776283185840708) internal successors, (5018), 2829 states have internal predecessors, (5018), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-11-16 09:20:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 5109 transitions. [2024-11-16 09:20:09,590 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 5109 transitions. Word has length 162 [2024-11-16 09:20:09,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:09,591 INFO L471 AbstractCegarLoop]: Abstraction has 2885 states and 5109 transitions. [2024-11-16 09:20:09,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 5109 transitions. [2024-11-16 09:20:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:09,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:09,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:09,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:20:09,595 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:09,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash -749964743, now seen corresponding path program 1 times [2024-11-16 09:20:09,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:09,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286987915] [2024-11-16 09:20:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:09,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:09,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:09,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286987915] [2024-11-16 09:20:09,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286987915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:09,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:09,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:09,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343302957] [2024-11-16 09:20:09,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:09,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:09,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:09,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:09,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:09,885 INFO L87 Difference]: Start difference. First operand 2885 states and 5109 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:11,618 INFO L93 Difference]: Finished difference Result 3886 states and 6673 transitions. [2024-11-16 09:20:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:11,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:11,631 INFO L225 Difference]: With dead ends: 3886 [2024-11-16 09:20:11,632 INFO L226 Difference]: Without dead ends: 3142 [2024-11-16 09:20:11,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:20:11,637 INFO L432 NwaCegarLoop]: 4280 mSDtfsCounter, 4991 mSDsluCounter, 16878 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 21158 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:11,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 21158 Invalid, 1674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:20:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2024-11-16 09:20:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 2885. [2024-11-16 09:20:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 2825 states have (on average 1.775575221238938) internal successors, (5016), 2829 states have internal predecessors, (5016), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-11-16 09:20:11,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 5107 transitions. [2024-11-16 09:20:11,732 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 5107 transitions. Word has length 162 [2024-11-16 09:20:11,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:11,734 INFO L471 AbstractCegarLoop]: Abstraction has 2885 states and 5107 transitions. [2024-11-16 09:20:11,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 5107 transitions. [2024-11-16 09:20:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:11,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:11,737 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:11,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:20:11,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:11,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:11,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1602824088, now seen corresponding path program 1 times [2024-11-16 09:20:11,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:11,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210532119] [2024-11-16 09:20:11,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:11,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:11,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:11,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:12,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:12,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:12,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:12,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:12,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210532119] [2024-11-16 09:20:12,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210532119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:12,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:12,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753734104] [2024-11-16 09:20:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:12,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:12,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:12,038 INFO L87 Difference]: Start difference. First operand 2885 states and 5107 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:14,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:14,956 INFO L93 Difference]: Finished difference Result 4380 states and 7426 transitions. [2024-11-16 09:20:14,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:14,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:14,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:14,972 INFO L225 Difference]: With dead ends: 4380 [2024-11-16 09:20:14,972 INFO L226 Difference]: Without dead ends: 3636 [2024-11-16 09:20:14,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:14,976 INFO L432 NwaCegarLoop]: 4560 mSDtfsCounter, 5373 mSDsluCounter, 17983 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 22543 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:14,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5390 Valid, 22543 Invalid, 3130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 09:20:14,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2024-11-16 09:20:15,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3240. [2024-11-16 09:20:15,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3240 states, 3154 states have (on average 1.7444514901712111) internal successors, (5502), 3159 states have internal predecessors, (5502), 64 states have call successors, (64), 19 states have call predecessors, (64), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2024-11-16 09:20:15,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3240 states to 3240 states and 5633 transitions. [2024-11-16 09:20:15,075 INFO L78 Accepts]: Start accepts. Automaton has 3240 states and 5633 transitions. Word has length 162 [2024-11-16 09:20:15,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:15,076 INFO L471 AbstractCegarLoop]: Abstraction has 3240 states and 5633 transitions. [2024-11-16 09:20:15,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3240 states and 5633 transitions. [2024-11-16 09:20:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:15,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:15,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:15,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:20:15,078 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:15,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash 708889177, now seen corresponding path program 1 times [2024-11-16 09:20:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850691075] [2024-11-16 09:20:15,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:15,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:15,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850691075] [2024-11-16 09:20:15,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850691075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:15,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:15,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:15,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545201699] [2024-11-16 09:20:15,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:15,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:15,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:15,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:15,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:15,360 INFO L87 Difference]: Start difference. First operand 3240 states and 5633 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:18,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:18,021 INFO L93 Difference]: Finished difference Result 5693 states and 9430 transitions. [2024-11-16 09:20:18,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:18,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:18,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:18,038 INFO L225 Difference]: With dead ends: 5693 [2024-11-16 09:20:18,038 INFO L226 Difference]: Without dead ends: 4594 [2024-11-16 09:20:18,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:18,045 INFO L432 NwaCegarLoop]: 4304 mSDtfsCounter, 5473 mSDsluCounter, 17205 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5490 SdHoareTripleChecker+Valid, 21509 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:18,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5490 Valid, 21509 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:20:18,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2024-11-16 09:20:18,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 3952. [2024-11-16 09:20:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3814 states have (on average 1.6982170949134767) internal successors, (6477), 3821 states have internal predecessors, (6477), 102 states have call successors, (102), 31 states have call predecessors, (102), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-11-16 09:20:18,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 6692 transitions. [2024-11-16 09:20:18,144 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 6692 transitions. Word has length 162 [2024-11-16 09:20:18,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:18,145 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 6692 transitions. [2024-11-16 09:20:18,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:18,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 6692 transitions. [2024-11-16 09:20:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:18,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:18,147 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:18,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:20:18,147 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:18,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:18,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1788431224, now seen corresponding path program 1 times [2024-11-16 09:20:18,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:18,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503481033] [2024-11-16 09:20:18,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:18,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:18,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503481033] [2024-11-16 09:20:18,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503481033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:18,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:18,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:18,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582366529] [2024-11-16 09:20:18,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:18,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:18,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:18,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:18,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:18,427 INFO L87 Difference]: Start difference. First operand 3952 states and 6692 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:21,298 INFO L93 Difference]: Finished difference Result 8235 states and 13285 transitions. [2024-11-16 09:20:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:21,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:21,318 INFO L225 Difference]: With dead ends: 8235 [2024-11-16 09:20:21,318 INFO L226 Difference]: Without dead ends: 6424 [2024-11-16 09:20:21,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:21,325 INFO L432 NwaCegarLoop]: 4558 mSDtfsCounter, 5367 mSDsluCounter, 17983 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 22541 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:21,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5384 Valid, 22541 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3048 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 09:20:21,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6424 states. [2024-11-16 09:20:21,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6424 to 5378. [2024-11-16 09:20:21,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5136 states have (on average 1.6411604361370717) internal successors, (8429), 5147 states have internal predecessors, (8429), 178 states have call successors, (178), 55 states have call predecessors, (178), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2024-11-16 09:20:21,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8818 transitions. [2024-11-16 09:20:21,488 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8818 transitions. Word has length 162 [2024-11-16 09:20:21,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:21,490 INFO L471 AbstractCegarLoop]: Abstraction has 5378 states and 8818 transitions. [2024-11-16 09:20:21,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8818 transitions. [2024-11-16 09:20:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:21,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:21,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:21,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:20:21,498 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:21,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:21,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1823255161, now seen corresponding path program 1 times [2024-11-16 09:20:21,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:21,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387192392] [2024-11-16 09:20:21,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:21,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:21,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:21,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:21,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:21,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:21,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:21,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:21,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387192392] [2024-11-16 09:20:21,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387192392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:21,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:21,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:21,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452504597] [2024-11-16 09:20:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:21,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:21,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:21,713 INFO L87 Difference]: Start difference. First operand 5378 states and 8818 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:25,138 INFO L93 Difference]: Finished difference Result 13319 states and 21013 transitions. [2024-11-16 09:20:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:25,168 INFO L225 Difference]: With dead ends: 13319 [2024-11-16 09:20:25,168 INFO L226 Difference]: Without dead ends: 10082 [2024-11-16 09:20:25,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:25,177 INFO L432 NwaCegarLoop]: 4558 mSDtfsCounter, 5363 mSDsluCounter, 17983 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5380 SdHoareTripleChecker+Valid, 22541 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:25,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5380 Valid, 22541 Invalid, 3102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3039 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 09:20:25,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10082 states. [2024-11-16 09:20:25,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10082 to 8236. [2024-11-16 09:20:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8236 states, 7786 states have (on average 1.5850244027742102) internal successors, (12341), 7805 states have internal predecessors, (12341), 330 states have call successors, (330), 103 states have call predecessors, (330), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2024-11-16 09:20:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8236 states to 8236 states and 13096 transitions. [2024-11-16 09:20:25,545 INFO L78 Accepts]: Start accepts. Automaton has 8236 states and 13096 transitions. Word has length 162 [2024-11-16 09:20:25,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:25,545 INFO L471 AbstractCegarLoop]: Abstraction has 8236 states and 13096 transitions. [2024-11-16 09:20:25,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:25,546 INFO L276 IsEmpty]: Start isEmpty. Operand 8236 states and 13096 transitions. [2024-11-16 09:20:25,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:25,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:25,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:25,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:20:25,552 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:25,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash -115284136, now seen corresponding path program 1 times [2024-11-16 09:20:25,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:25,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881216078] [2024-11-16 09:20:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:25,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:25,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:25,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881216078] [2024-11-16 09:20:25,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881216078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:25,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:25,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:25,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008997099] [2024-11-16 09:20:25,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:25,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:25,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:25,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:25,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:25,785 INFO L87 Difference]: Start difference. First operand 8236 states and 13096 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:29,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:29,566 INFO L93 Difference]: Finished difference Result 23487 states and 36529 transitions. [2024-11-16 09:20:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:29,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:29,604 INFO L225 Difference]: With dead ends: 23487 [2024-11-16 09:20:29,604 INFO L226 Difference]: Without dead ends: 17392 [2024-11-16 09:20:29,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:29,618 INFO L432 NwaCegarLoop]: 4558 mSDtfsCounter, 5359 mSDsluCounter, 17983 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5376 SdHoareTripleChecker+Valid, 22541 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:29,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5376 Valid, 22541 Invalid, 3093 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3030 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 09:20:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17392 states. [2024-11-16 09:20:29,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17392 to 13966. [2024-11-16 09:20:30,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13966 states, 13100 states have (on average 1.5408396946564886) internal successors, (20185), 13135 states have internal predecessors, (20185), 634 states have call successors, (634), 199 states have call predecessors, (634), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-11-16 09:20:30,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13966 states to 13966 states and 21726 transitions. [2024-11-16 09:20:30,035 INFO L78 Accepts]: Start accepts. Automaton has 13966 states and 21726 transitions. Word has length 162 [2024-11-16 09:20:30,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:30,036 INFO L471 AbstractCegarLoop]: Abstraction has 13966 states and 21726 transitions. [2024-11-16 09:20:30,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:30,036 INFO L276 IsEmpty]: Start isEmpty. Operand 13966 states and 21726 transitions. [2024-11-16 09:20:30,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:30,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:30,048 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:30,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:20:30,051 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:30,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:30,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1563290983, now seen corresponding path program 1 times [2024-11-16 09:20:30,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:30,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48145856] [2024-11-16 09:20:30,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:30,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:30,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:30,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:30,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:30,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:30,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:30,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:30,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48145856] [2024-11-16 09:20:30,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48145856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:30,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:30,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:30,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95164822] [2024-11-16 09:20:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:30,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:30,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:30,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:30,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:30,240 INFO L87 Difference]: Start difference. First operand 13966 states and 21726 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:31,927 INFO L93 Difference]: Finished difference Result 29412 states and 45757 transitions. [2024-11-16 09:20:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:31,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:31,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:31,963 INFO L225 Difference]: With dead ends: 29412 [2024-11-16 09:20:31,963 INFO L226 Difference]: Without dead ends: 17587 [2024-11-16 09:20:31,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:20:31,985 INFO L432 NwaCegarLoop]: 4279 mSDtfsCounter, 5142 mSDsluCounter, 12691 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5160 SdHoareTripleChecker+Valid, 16970 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:31,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5160 Valid, 16970 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:20:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17587 states. [2024-11-16 09:20:32,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17587 to 13966. [2024-11-16 09:20:32,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13966 states, 13100 states have (on average 1.5383206106870229) internal successors, (20152), 13135 states have internal predecessors, (20152), 634 states have call successors, (634), 199 states have call predecessors, (634), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-11-16 09:20:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13966 states to 13966 states and 21693 transitions. [2024-11-16 09:20:32,408 INFO L78 Accepts]: Start accepts. Automaton has 13966 states and 21693 transitions. Word has length 162 [2024-11-16 09:20:32,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:32,408 INFO L471 AbstractCegarLoop]: Abstraction has 13966 states and 21693 transitions. [2024-11-16 09:20:32,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13966 states and 21693 transitions. [2024-11-16 09:20:32,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:32,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:32,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:32,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:20:32,418 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:32,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:32,419 INFO L85 PathProgramCache]: Analyzing trace with hash -224527560, now seen corresponding path program 1 times [2024-11-16 09:20:32,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:32,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083198977] [2024-11-16 09:20:32,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:32,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:32,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:32,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:32,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:32,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:32,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:32,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:32,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083198977] [2024-11-16 09:20:32,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083198977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:32,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:32,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:32,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57769977] [2024-11-16 09:20:32,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:32,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:32,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:32,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:32,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:32,582 INFO L87 Difference]: Start difference. First operand 13966 states and 21693 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:34,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:34,225 INFO L93 Difference]: Finished difference Result 29377 states and 45589 transitions. [2024-11-16 09:20:34,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:34,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:34,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:34,267 INFO L225 Difference]: With dead ends: 29377 [2024-11-16 09:20:34,267 INFO L226 Difference]: Without dead ends: 17552 [2024-11-16 09:20:34,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:20:34,290 INFO L432 NwaCegarLoop]: 4279 mSDtfsCounter, 5140 mSDsluCounter, 12691 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5158 SdHoareTripleChecker+Valid, 16970 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:34,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5158 Valid, 16970 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:20:34,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17552 states. [2024-11-16 09:20:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17552 to 13966. [2024-11-16 09:20:34,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13966 states, 13100 states have (on average 1.5358015267175573) internal successors, (20119), 13135 states have internal predecessors, (20119), 634 states have call successors, (634), 199 states have call predecessors, (634), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-11-16 09:20:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13966 states to 13966 states and 21660 transitions. [2024-11-16 09:20:34,733 INFO L78 Accepts]: Start accepts. Automaton has 13966 states and 21660 transitions. Word has length 162 [2024-11-16 09:20:34,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:34,733 INFO L471 AbstractCegarLoop]: Abstraction has 13966 states and 21660 transitions. [2024-11-16 09:20:34,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 13966 states and 21660 transitions. [2024-11-16 09:20:34,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:34,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:34,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:34,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:20:34,742 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:34,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash -42794311, now seen corresponding path program 1 times [2024-11-16 09:20:34,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:34,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406565082] [2024-11-16 09:20:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:34,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:34,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:34,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:34,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:34,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:34,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:34,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:34,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406565082] [2024-11-16 09:20:34,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406565082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:34,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:34,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:34,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384674717] [2024-11-16 09:20:34,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:34,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:34,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:34,905 INFO L87 Difference]: Start difference. First operand 13966 states and 21660 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:38,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:38,418 INFO L93 Difference]: Finished difference Result 43751 states and 67285 transitions. [2024-11-16 09:20:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:20:38,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:38,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:38,505 INFO L225 Difference]: With dead ends: 43751 [2024-11-16 09:20:38,505 INFO L226 Difference]: Without dead ends: 31926 [2024-11-16 09:20:38,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:20:38,538 INFO L432 NwaCegarLoop]: 4558 mSDtfsCounter, 5339 mSDsluCounter, 17983 mSDsCounter, 0 mSdLazyCounter, 2973 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5356 SdHoareTripleChecker+Valid, 22541 SdHoareTripleChecker+Invalid, 3036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:38,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5356 Valid, 22541 Invalid, 3036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2973 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 09:20:38,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31926 states. [2024-11-16 09:20:39,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31926 to 25520. [2024-11-16 09:20:39,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25520 states, 23822 states have (on average 1.5050373604231382) internal successors, (35853), 23889 states have internal predecessors, (35853), 1242 states have call successors, (1242), 391 states have call predecessors, (1242), 454 states have return successors, (2033), 1303 states have call predecessors, (2033), 1240 states have call successors, (2033) [2024-11-16 09:20:39,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25520 states to 25520 states and 39128 transitions. [2024-11-16 09:20:39,536 INFO L78 Accepts]: Start accepts. Automaton has 25520 states and 39128 transitions. Word has length 162 [2024-11-16 09:20:39,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:39,537 INFO L471 AbstractCegarLoop]: Abstraction has 25520 states and 39128 transitions. [2024-11-16 09:20:39,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:39,537 INFO L276 IsEmpty]: Start isEmpty. Operand 25520 states and 39128 transitions. [2024-11-16 09:20:39,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:39,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:39,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:39,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:20:39,551 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:39,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:39,552 INFO L85 PathProgramCache]: Analyzing trace with hash 101615384, now seen corresponding path program 1 times [2024-11-16 09:20:39,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:39,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329492745] [2024-11-16 09:20:39,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:39,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:39,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:39,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329492745] [2024-11-16 09:20:39,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329492745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:39,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:39,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:39,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143650159] [2024-11-16 09:20:39,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:39,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:39,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:39,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:39,700 INFO L87 Difference]: Start difference. First operand 25520 states and 39128 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:41,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:41,863 INFO L93 Difference]: Finished difference Result 55647 states and 86085 transitions. [2024-11-16 09:20:41,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:41,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:41,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:41,948 INFO L225 Difference]: With dead ends: 55647 [2024-11-16 09:20:41,948 INFO L226 Difference]: Without dead ends: 32268 [2024-11-16 09:20:41,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:20:41,998 INFO L432 NwaCegarLoop]: 4279 mSDtfsCounter, 4995 mSDsluCounter, 16878 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5013 SdHoareTripleChecker+Valid, 21157 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:41,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5013 Valid, 21157 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:20:42,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32268 states. [2024-11-16 09:20:42,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32268 to 25520. [2024-11-16 09:20:42,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25520 states, 23822 states have (on average 1.5023087901939385) internal successors, (35788), 23889 states have internal predecessors, (35788), 1242 states have call successors, (1242), 391 states have call predecessors, (1242), 454 states have return successors, (2033), 1303 states have call predecessors, (2033), 1240 states have call successors, (2033) [2024-11-16 09:20:43,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25520 states to 25520 states and 39063 transitions. [2024-11-16 09:20:43,055 INFO L78 Accepts]: Start accepts. Automaton has 25520 states and 39063 transitions. Word has length 162 [2024-11-16 09:20:43,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:43,056 INFO L471 AbstractCegarLoop]: Abstraction has 25520 states and 39063 transitions. [2024-11-16 09:20:43,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:43,056 INFO L276 IsEmpty]: Start isEmpty. Operand 25520 states and 39063 transitions. [2024-11-16 09:20:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:43,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:43,067 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:43,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:20:43,068 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:43,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash -170820903, now seen corresponding path program 1 times [2024-11-16 09:20:43,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:43,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120138329] [2024-11-16 09:20:43,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:43,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:43,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:43,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:43,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:43,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:43,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:43,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:43,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:43,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120138329] [2024-11-16 09:20:43,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120138329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:43,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:43,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:43,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80613561] [2024-11-16 09:20:43,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:43,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:43,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:43,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:43,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:43,222 INFO L87 Difference]: Start difference. First operand 25520 states and 39063 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:48,139 INFO L93 Difference]: Finished difference Result 93887 states and 144083 transitions. [2024-11-16 09:20:48,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:20:48,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:48,298 INFO L225 Difference]: With dead ends: 93887 [2024-11-16 09:20:48,298 INFO L226 Difference]: Without dead ends: 70508 [2024-11-16 09:20:48,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:20:48,348 INFO L432 NwaCegarLoop]: 4306 mSDtfsCounter, 5841 mSDsluCounter, 17201 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5869 SdHoareTripleChecker+Valid, 21507 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:48,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5869 Valid, 21507 Invalid, 2609 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [102 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:20:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70508 states. [2024-11-16 09:20:50,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70508 to 48558. [2024-11-16 09:20:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48558 states, 45260 states have (on average 1.4850419796730003) internal successors, (67213), 45391 states have internal predecessors, (67213), 2394 states have call successors, (2394), 775 states have call predecessors, (2394), 902 states have return successors, (4707), 2519 states have call predecessors, (4707), 2392 states have call successors, (4707) [2024-11-16 09:20:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48558 states to 48558 states and 74314 transitions. [2024-11-16 09:20:50,727 INFO L78 Accepts]: Start accepts. Automaton has 48558 states and 74314 transitions. Word has length 162 [2024-11-16 09:20:50,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:50,731 INFO L471 AbstractCegarLoop]: Abstraction has 48558 states and 74314 transitions. [2024-11-16 09:20:50,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:50,732 INFO L276 IsEmpty]: Start isEmpty. Operand 48558 states and 74314 transitions. [2024-11-16 09:20:50,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:50,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:50,788 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:50,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:20:50,788 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:50,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:50,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1980724488, now seen corresponding path program 1 times [2024-11-16 09:20:50,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:50,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665327500] [2024-11-16 09:20:50,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:50,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:50,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:50,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:50,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:50,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:50,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:50,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:50,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665327500] [2024-11-16 09:20:50,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665327500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:50,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:50,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:50,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994605770] [2024-11-16 09:20:50,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:50,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:50,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:50,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:50,943 INFO L87 Difference]: Start difference. First operand 48558 states and 74314 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:54,661 INFO L93 Difference]: Finished difference Result 107797 states and 167631 transitions. [2024-11-16 09:20:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:20:54,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:20:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:54,798 INFO L225 Difference]: With dead ends: 107797 [2024-11-16 09:20:54,798 INFO L226 Difference]: Without dead ends: 61380 [2024-11-16 09:20:54,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:20:54,881 INFO L432 NwaCegarLoop]: 4279 mSDtfsCounter, 5136 mSDsluCounter, 12689 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 16968 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:54,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 16968 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:20:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61380 states. [2024-11-16 09:20:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61380 to 48558. [2024-11-16 09:20:56,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48558 states, 45260 states have (on average 1.4821917808219178) internal successors, (67084), 45391 states have internal predecessors, (67084), 2394 states have call successors, (2394), 775 states have call predecessors, (2394), 902 states have return successors, (4707), 2519 states have call predecessors, (4707), 2392 states have call successors, (4707) [2024-11-16 09:20:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48558 states to 48558 states and 74185 transitions. [2024-11-16 09:20:57,170 INFO L78 Accepts]: Start accepts. Automaton has 48558 states and 74185 transitions. Word has length 162 [2024-11-16 09:20:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:57,171 INFO L471 AbstractCegarLoop]: Abstraction has 48558 states and 74185 transitions. [2024-11-16 09:20:57,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:57,171 INFO L276 IsEmpty]: Start isEmpty. Operand 48558 states and 74185 transitions. [2024-11-16 09:20:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 09:20:57,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:57,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:57,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:20:57,190 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:57,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1840216825, now seen corresponding path program 1 times [2024-11-16 09:20:57,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:57,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872566317] [2024-11-16 09:20:57,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:57,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:57,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:57,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:20:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:57,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:20:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:57,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:20:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:57,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:20:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:20:57,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:57,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872566317] [2024-11-16 09:20:57,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872566317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:57,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:20:57,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:20:57,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749470743] [2024-11-16 09:20:57,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:57,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:20:57,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:57,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:20:57,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:20:57,423 INFO L87 Difference]: Start difference. First operand 48558 states and 74185 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 09:21:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:21:05,677 INFO L93 Difference]: Finished difference Result 180845 states and 278916 transitions. [2024-11-16 09:21:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:21:05,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-11-16 09:21:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:21:06,049 INFO L225 Difference]: With dead ends: 180845 [2024-11-16 09:21:06,050 INFO L226 Difference]: Without dead ends: 134428 [2024-11-16 09:21:06,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:21:06,145 INFO L432 NwaCegarLoop]: 4556 mSDtfsCounter, 5645 mSDsluCounter, 17975 mSDsCounter, 0 mSdLazyCounter, 2900 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5673 SdHoareTripleChecker+Valid, 22531 SdHoareTripleChecker+Invalid, 2966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:21:06,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5673 Valid, 22531 Invalid, 2966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2900 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 09:21:06,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134428 states.