./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.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_label42+token_ring.11.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 257fbefed94a1e5b18da17b648f63b8a4a376ab6bd67ba2a090c30b5997c5667 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:06:58,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:06:58,500 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:06:58,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:06:58,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:06:58,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:06:58,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:06:58,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:06:58,537 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:06:58,537 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:06:58,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:06:58,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:06:58,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:06:58,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:06:58,539 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:06:58,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:06:58,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:06:58,543 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:06:58,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:06:58,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:06:58,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:06:58,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:06:58,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:06:58,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:06:58,545 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:06:58,546 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:06:58,546 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:06:58,546 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:06:58,546 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:06:58,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:06:58,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:06:58,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:06:58,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:06:58,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:06:58,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:06:58,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:06:58,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:06:58,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:06:58,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:06:58,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:06:58,550 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:06:58,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:06:58,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 257fbefed94a1e5b18da17b648f63b8a4a376ab6bd67ba2a090c30b5997c5667 [2024-11-16 09:06:58,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:06:58,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:06:58,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:06:58,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:06:58,805 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:06:58,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c [2024-11-16 09:07:00,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:07:00,753 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:07:00,754 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c [2024-11-16 09:07:00,804 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/776f71d9f/86b3deffc8b34d35b53400aa63e7b0b0/FLAGe26d5c249 [2024-11-16 09:07:00,818 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/776f71d9f/86b3deffc8b34d35b53400aa63e7b0b0 [2024-11-16 09:07:00,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:07:00,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:07:00,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:07:00,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:07:00,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:07:00,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:07:00" (1/1) ... [2024-11-16 09:07:00,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24429370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:00, skipping insertion in model container [2024-11-16 09:07:00,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:07:00" (1/1) ... [2024-11-16 09:07:01,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:07:02,723 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c[378560,378573] [2024-11-16 09:07:02,755 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c[383339,383352] [2024-11-16 09:07:03,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:07:03,086 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:07:03,928 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c[378560,378573] [2024-11-16 09:07:03,938 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c[383339,383352] [2024-11-16 09:07:04,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:07:04,073 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:07:04,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04 WrapperNode [2024-11-16 09:07:04,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:07:04,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:07:04,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:07:04,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:07:04,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:04,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:04,541 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 13164 [2024-11-16 09:07:04,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:07:04,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:07:04,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:07:04,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:07:04,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:04,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:04,773 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:04,884 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 09:07:04,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:04,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:05,158 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:05,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:05,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:05,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:05,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:07:05,263 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:07:05,264 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:07:05,264 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:07:05,265 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (1/1) ... [2024-11-16 09:07:05,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:07:05,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:07:05,296 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 09:07:05,298 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 09:07:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:07:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:07:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:07:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:07:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:07:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:07:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:07:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:07:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:07:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:07:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:07:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:07:05,342 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:07:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:07:05,342 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:07:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:07:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:07:05,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:07:05,505 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:07:05,507 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:07:13,569 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:07:13,570 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:07:13,570 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:07:13,570 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:07:13,571 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:07:13,571 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:07:13,571 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:07:13,950 INFO L? ?]: Removed 1753 outVars from TransFormulas that were not future-live. [2024-11-16 09:07:13,950 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:07:14,008 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:07:14,008 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:07:14,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:07:14 BoogieIcfgContainer [2024-11-16 09:07:14,009 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:07:14,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:07:14,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:07:14,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:07:14,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:07:00" (1/3) ... [2024-11-16 09:07:14,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698fe13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:07:14, skipping insertion in model container [2024-11-16 09:07:14,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:07:04" (2/3) ... [2024-11-16 09:07:14,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698fe13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:07:14, skipping insertion in model container [2024-11-16 09:07:14,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:07:14" (3/3) ... [2024-11-16 09:07:14,020 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.11.cil-1.c [2024-11-16 09:07:14,035 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:07:14,039 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:07:14,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:07:14,178 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;@56f57caf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:07:14,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:07:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 2619 states, 2582 states have (on average 1.8214562354763748) internal successors, (4703), 2587 states have internal predecessors, (4703), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 09:07:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:14,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:14,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:14,221 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:14,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:14,227 INFO L85 PathProgramCache]: Analyzing trace with hash -549046871, now seen corresponding path program 1 times [2024-11-16 09:07:14,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:14,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373512077] [2024-11-16 09:07:14,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:14,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:14,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:14,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:14,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373512077] [2024-11-16 09:07:14,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373512077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:14,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:14,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:07:14,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599151106] [2024-11-16 09:07:14,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:14,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:07:14,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:15,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:07:15,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:07:15,019 INFO L87 Difference]: Start difference. First operand has 2619 states, 2582 states have (on average 1.8214562354763748) internal successors, (4703), 2587 states have internal predecessors, (4703), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:18,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:18,236 INFO L93 Difference]: Finished difference Result 5880 states and 10573 transitions. [2024-11-16 09:07:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:07:18,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:18,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:18,270 INFO L225 Difference]: With dead ends: 5880 [2024-11-16 09:07:18,270 INFO L226 Difference]: Without dead ends: 3208 [2024-11-16 09:07:18,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:18,284 INFO L432 NwaCegarLoop]: 4390 mSDtfsCounter, 5548 mSDsluCounter, 13235 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5566 SdHoareTripleChecker+Valid, 17625 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:18,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5566 Valid, 17625 Invalid, 2218 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 09:07:18,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2024-11-16 09:07:18,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2944. [2024-11-16 09:07:18,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2882 states have (on average 1.7716863289382374) internal successors, (5106), 2886 states have internal predecessors, (5106), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-16 09:07:18,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 5201 transitions. [2024-11-16 09:07:18,468 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 5201 transitions. Word has length 173 [2024-11-16 09:07:18,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:18,468 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 5201 transitions. [2024-11-16 09:07:18,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:18,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 5201 transitions. [2024-11-16 09:07:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:18,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:18,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:18,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:07:18,474 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:18,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash 166484203, now seen corresponding path program 1 times [2024-11-16 09:07:18,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:18,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117653400] [2024-11-16 09:07:18,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:18,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:18,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:18,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:18,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:18,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:18,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:18,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:18,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117653400] [2024-11-16 09:07:18,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117653400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:18,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:18,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:18,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353124261] [2024-11-16 09:07:18,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:18,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:18,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:18,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:18,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:18,879 INFO L87 Difference]: Start difference. First operand 2944 states and 5201 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:21,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:21,177 INFO L93 Difference]: Finished difference Result 4027 states and 6897 transitions. [2024-11-16 09:07:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:21,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:21,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:21,195 INFO L225 Difference]: With dead ends: 4027 [2024-11-16 09:07:21,196 INFO L226 Difference]: Without dead ends: 3225 [2024-11-16 09:07:21,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:21,203 INFO L432 NwaCegarLoop]: 4304 mSDtfsCounter, 5077 mSDsluCounter, 16958 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5096 SdHoareTripleChecker+Valid, 21262 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:21,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5096 Valid, 21262 Invalid, 1814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:07:21,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2024-11-16 09:07:21,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 2944. [2024-11-16 09:07:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2882 states have (on average 1.7709923664122138) internal successors, (5104), 2886 states have internal predecessors, (5104), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-16 09:07:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 5199 transitions. [2024-11-16 09:07:21,338 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 5199 transitions. Word has length 173 [2024-11-16 09:07:21,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:21,339 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 5199 transitions. [2024-11-16 09:07:21,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:21,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 5199 transitions. [2024-11-16 09:07:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:21,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:21,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:21,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:07:21,347 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:21,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:21,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1852384138, now seen corresponding path program 1 times [2024-11-16 09:07:21,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:21,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041278543] [2024-11-16 09:07:21,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:21,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:21,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:21,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:21,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:21,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:21,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:21,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:21,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041278543] [2024-11-16 09:07:21,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041278543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:21,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:21,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:21,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167479982] [2024-11-16 09:07:21,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:21,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:21,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:21,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:21,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:21,718 INFO L87 Difference]: Start difference. First operand 2944 states and 5199 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:25,355 INFO L93 Difference]: Finished difference Result 4562 states and 7716 transitions. [2024-11-16 09:07:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:25,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:25,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:25,374 INFO L225 Difference]: With dead ends: 4562 [2024-11-16 09:07:25,375 INFO L226 Difference]: Without dead ends: 3760 [2024-11-16 09:07:25,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:25,379 INFO L432 NwaCegarLoop]: 4604 mSDtfsCounter, 5496 mSDsluCounter, 18147 mSDsCounter, 0 mSdLazyCounter, 3332 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5514 SdHoareTripleChecker+Valid, 22751 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:25,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5514 Valid, 22751 Invalid, 3395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3332 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 09:07:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2024-11-16 09:07:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 3327. [2024-11-16 09:07:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3238 states have (on average 1.7390364422483013) internal successors, (5631), 3243 states have internal predecessors, (5631), 67 states have call successors, (67), 19 states have call predecessors, (67), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-16 09:07:25,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 5768 transitions. [2024-11-16 09:07:25,492 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 5768 transitions. Word has length 173 [2024-11-16 09:07:25,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:25,492 INFO L471 AbstractCegarLoop]: Abstraction has 3327 states and 5768 transitions. [2024-11-16 09:07:25,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 5768 transitions. [2024-11-16 09:07:25,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:25,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:25,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:25,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:07:25,496 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:25,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:25,496 INFO L85 PathProgramCache]: Analyzing trace with hash 2045315339, now seen corresponding path program 1 times [2024-11-16 09:07:25,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:25,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060200079] [2024-11-16 09:07:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:25,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:25,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:25,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:25,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:25,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:25,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:25,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:25,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:25,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060200079] [2024-11-16 09:07:25,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060200079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:25,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:25,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:25,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399249987] [2024-11-16 09:07:25,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:25,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:25,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:25,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:25,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:25,796 INFO L87 Difference]: Start difference. First operand 3327 states and 5768 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:29,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:29,213 INFO L93 Difference]: Finished difference Result 5983 states and 9891 transitions. [2024-11-16 09:07:29,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:29,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:29,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:29,235 INFO L225 Difference]: With dead ends: 5983 [2024-11-16 09:07:29,235 INFO L226 Difference]: Without dead ends: 4798 [2024-11-16 09:07:29,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:29,244 INFO L432 NwaCegarLoop]: 4602 mSDtfsCounter, 5494 mSDsluCounter, 18147 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5512 SdHoareTripleChecker+Valid, 22749 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:29,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5512 Valid, 22749 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3320 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 09:07:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4798 states. [2024-11-16 09:07:29,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4798 to 4095. [2024-11-16 09:07:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4095 states, 3952 states have (on average 1.6923076923076923) internal successors, (6688), 3959 states have internal predecessors, (6688), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-11-16 09:07:29,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4095 states to 4095 states and 6913 transitions. [2024-11-16 09:07:29,399 INFO L78 Accepts]: Start accepts. Automaton has 4095 states and 6913 transitions. Word has length 173 [2024-11-16 09:07:29,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:29,400 INFO L471 AbstractCegarLoop]: Abstraction has 4095 states and 6913 transitions. [2024-11-16 09:07:29,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4095 states and 6913 transitions. [2024-11-16 09:07:29,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:29,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:29,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:29,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:07:29,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:29,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:29,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1912991594, now seen corresponding path program 1 times [2024-11-16 09:07:29,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:29,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800340573] [2024-11-16 09:07:29,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:29,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:29,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:29,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800340573] [2024-11-16 09:07:29,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800340573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:29,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:29,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:29,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283944224] [2024-11-16 09:07:29,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:29,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:29,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:29,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:29,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:29,703 INFO L87 Difference]: Start difference. First operand 4095 states and 6913 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:32,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:32,976 INFO L93 Difference]: Finished difference Result 8733 states and 14072 transitions. [2024-11-16 09:07:32,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:32,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:32,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:33,006 INFO L225 Difference]: With dead ends: 8733 [2024-11-16 09:07:33,007 INFO L226 Difference]: Without dead ends: 6780 [2024-11-16 09:07:33,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:33,017 INFO L432 NwaCegarLoop]: 4602 mSDtfsCounter, 5490 mSDsluCounter, 18147 mSDsCounter, 0 mSdLazyCounter, 3311 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5508 SdHoareTripleChecker+Valid, 22749 SdHoareTripleChecker+Invalid, 3376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:33,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5508 Valid, 22749 Invalid, 3376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3311 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 09:07:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6780 states. [2024-11-16 09:07:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6780 to 5633. [2024-11-16 09:07:33,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5633 states, 5382 states have (on average 1.6358231140839836) internal successors, (8804), 5393 states have internal predecessors, (8804), 187 states have call successors, (187), 55 states have call predecessors, (187), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-11-16 09:07:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5633 states to 5633 states and 9211 transitions. [2024-11-16 09:07:33,242 INFO L78 Accepts]: Start accepts. Automaton has 5633 states and 9211 transitions. Word has length 173 [2024-11-16 09:07:33,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:33,244 INFO L471 AbstractCegarLoop]: Abstraction has 5633 states and 9211 transitions. [2024-11-16 09:07:33,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5633 states and 9211 transitions. [2024-11-16 09:07:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:33,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:33,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:33,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:07:33,253 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:33,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:33,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1416412885, now seen corresponding path program 1 times [2024-11-16 09:07:33,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:33,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183891471] [2024-11-16 09:07:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:33,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:33,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:33,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183891471] [2024-11-16 09:07:33,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183891471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:33,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:33,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:33,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839364175] [2024-11-16 09:07:33,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:33,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:33,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:33,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:33,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:33,558 INFO L87 Difference]: Start difference. First operand 5633 states and 9211 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:37,137 INFO L93 Difference]: Finished difference Result 14233 states and 22452 transitions. [2024-11-16 09:07:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:37,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:37,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:37,198 INFO L225 Difference]: With dead ends: 14233 [2024-11-16 09:07:37,198 INFO L226 Difference]: Without dead ends: 10742 [2024-11-16 09:07:37,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:37,219 INFO L432 NwaCegarLoop]: 4602 mSDtfsCounter, 5492 mSDsluCounter, 18147 mSDsCounter, 0 mSdLazyCounter, 3297 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5510 SdHoareTripleChecker+Valid, 22749 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:37,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5510 Valid, 22749 Invalid, 3362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3297 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 09:07:37,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2024-11-16 09:07:37,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 8715. [2024-11-16 09:07:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8715 states, 8248 states have (on average 1.5814742967992241) internal successors, (13044), 8267 states have internal predecessors, (13044), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-16 09:07:37,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8715 states to 8715 states and 13833 transitions. [2024-11-16 09:07:37,757 INFO L78 Accepts]: Start accepts. Automaton has 8715 states and 13833 transitions. Word has length 173 [2024-11-16 09:07:37,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:37,759 INFO L471 AbstractCegarLoop]: Abstraction has 8715 states and 13833 transitions. [2024-11-16 09:07:37,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:37,760 INFO L276 IsEmpty]: Start isEmpty. Operand 8715 states and 13833 transitions. [2024-11-16 09:07:37,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:37,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:37,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:37,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:07:37,767 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:37,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:37,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2078002358, now seen corresponding path program 1 times [2024-11-16 09:07:37,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:37,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665995350] [2024-11-16 09:07:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:37,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:37,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:37,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:38,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:38,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:38,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:38,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:38,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665995350] [2024-11-16 09:07:38,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665995350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:38,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:38,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:38,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882914876] [2024-11-16 09:07:38,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:38,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:38,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:38,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:38,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:38,089 INFO L87 Difference]: Start difference. First operand 8715 states and 13833 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:39,955 INFO L93 Difference]: Finished difference Result 17392 states and 27298 transitions. [2024-11-16 09:07:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:39,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:39,990 INFO L225 Difference]: With dead ends: 17392 [2024-11-16 09:07:39,990 INFO L226 Difference]: Without dead ends: 10819 [2024-11-16 09:07:40,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:40,013 INFO L432 NwaCegarLoop]: 4303 mSDtfsCounter, 5087 mSDsluCounter, 16958 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5106 SdHoareTripleChecker+Valid, 21261 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:40,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5106 Valid, 21261 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:07:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10819 states. [2024-11-16 09:07:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10819 to 8715. [2024-11-16 09:07:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8715 states, 8248 states have (on average 1.5794131910766247) internal successors, (13027), 8267 states have internal predecessors, (13027), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-16 09:07:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8715 states to 8715 states and 13816 transitions. [2024-11-16 09:07:40,498 INFO L78 Accepts]: Start accepts. Automaton has 8715 states and 13816 transitions. Word has length 173 [2024-11-16 09:07:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:40,498 INFO L471 AbstractCegarLoop]: Abstraction has 8715 states and 13816 transitions. [2024-11-16 09:07:40,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 8715 states and 13816 transitions. [2024-11-16 09:07:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:40,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:40,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:40,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:07:40,504 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:40,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:40,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1908858583, now seen corresponding path program 1 times [2024-11-16 09:07:40,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:40,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819518548] [2024-11-16 09:07:40,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:40,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:40,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:40,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:40,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:40,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:40,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:40,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:40,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819518548] [2024-11-16 09:07:40,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819518548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:40,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:40,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:40,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914159394] [2024-11-16 09:07:40,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:40,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:40,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:40,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:40,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:40,773 INFO L87 Difference]: Start difference. First operand 8715 states and 13816 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:42,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:42,506 INFO L93 Difference]: Finished difference Result 17374 states and 27211 transitions. [2024-11-16 09:07:42,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:42,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:42,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:42,545 INFO L225 Difference]: With dead ends: 17374 [2024-11-16 09:07:42,546 INFO L226 Difference]: Without dead ends: 10801 [2024-11-16 09:07:42,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:42,570 INFO L432 NwaCegarLoop]: 4303 mSDtfsCounter, 5085 mSDsluCounter, 16958 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5104 SdHoareTripleChecker+Valid, 21261 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:42,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5104 Valid, 21261 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:07:42,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2024-11-16 09:07:43,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 8715. [2024-11-16 09:07:43,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8715 states, 8248 states have (on average 1.5773520853540253) internal successors, (13010), 8267 states have internal predecessors, (13010), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-16 09:07:43,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8715 states to 8715 states and 13799 transitions. [2024-11-16 09:07:43,048 INFO L78 Accepts]: Start accepts. Automaton has 8715 states and 13799 transitions. Word has length 173 [2024-11-16 09:07:43,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:43,048 INFO L471 AbstractCegarLoop]: Abstraction has 8715 states and 13799 transitions. [2024-11-16 09:07:43,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 8715 states and 13799 transitions. [2024-11-16 09:07:43,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:43,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:43,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:43,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:07:43,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:43,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash 451902314, now seen corresponding path program 1 times [2024-11-16 09:07:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:43,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867479280] [2024-11-16 09:07:43,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:43,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:43,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867479280] [2024-11-16 09:07:43,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867479280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:43,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:43,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:43,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940062574] [2024-11-16 09:07:43,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:43,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:43,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:43,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:43,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:43,348 INFO L87 Difference]: Start difference. First operand 8715 states and 13799 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:47,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:47,095 INFO L93 Difference]: Finished difference Result 25181 states and 39002 transitions. [2024-11-16 09:07:47,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:07:47,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:47,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:47,158 INFO L225 Difference]: With dead ends: 25181 [2024-11-16 09:07:47,158 INFO L226 Difference]: Without dead ends: 18608 [2024-11-16 09:07:47,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:07:47,184 INFO L432 NwaCegarLoop]: 4602 mSDtfsCounter, 5474 mSDsluCounter, 18147 mSDsCounter, 0 mSdLazyCounter, 3219 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5492 SdHoareTripleChecker+Valid, 22749 SdHoareTripleChecker+Invalid, 3284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:47,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5492 Valid, 22749 Invalid, 3284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3219 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 09:07:47,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18608 states. [2024-11-16 09:07:47,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18608 to 14944. [2024-11-16 09:07:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14944 states, 14045 states have (on average 1.5342114631541475) internal successors, (21548), 14080 states have internal predecessors, (21548), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-16 09:07:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14944 states to 14944 states and 23155 transitions. [2024-11-16 09:07:47,908 INFO L78 Accepts]: Start accepts. Automaton has 14944 states and 23155 transitions. Word has length 173 [2024-11-16 09:07:47,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:47,911 INFO L471 AbstractCegarLoop]: Abstraction has 14944 states and 23155 transitions. [2024-11-16 09:07:47,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:47,911 INFO L276 IsEmpty]: Start isEmpty. Operand 14944 states and 23155 transitions. [2024-11-16 09:07:47,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:47,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:47,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:47,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:07:47,924 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:47,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:47,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1965796087, now seen corresponding path program 1 times [2024-11-16 09:07:47,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:47,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143595130] [2024-11-16 09:07:47,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:47,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:48,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:48,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:48,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:48,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:48,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:48,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:48,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143595130] [2024-11-16 09:07:48,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143595130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:48,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:48,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:48,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494166942] [2024-11-16 09:07:48,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:48,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:48,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:48,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:48,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:48,148 INFO L87 Difference]: Start difference. First operand 14944 states and 23155 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:50,221 INFO L93 Difference]: Finished difference Result 31588 states and 48922 transitions. [2024-11-16 09:07:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:50,285 INFO L225 Difference]: With dead ends: 31588 [2024-11-16 09:07:50,285 INFO L226 Difference]: Without dead ends: 18786 [2024-11-16 09:07:50,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:50,321 INFO L432 NwaCegarLoop]: 4303 mSDtfsCounter, 5240 mSDsluCounter, 12754 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5259 SdHoareTripleChecker+Valid, 17057 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:50,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5259 Valid, 17057 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:07:50,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18786 states. [2024-11-16 09:07:51,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18786 to 14944. [2024-11-16 09:07:51,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14944 states, 14045 states have (on average 1.5318618725525097) internal successors, (21515), 14080 states have internal predecessors, (21515), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-16 09:07:51,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14944 states to 14944 states and 23122 transitions. [2024-11-16 09:07:51,174 INFO L78 Accepts]: Start accepts. Automaton has 14944 states and 23122 transitions. Word has length 173 [2024-11-16 09:07:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:51,175 INFO L471 AbstractCegarLoop]: Abstraction has 14944 states and 23122 transitions. [2024-11-16 09:07:51,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 14944 states and 23122 transitions. [2024-11-16 09:07:51,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:51,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:51,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:51,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:07:51,186 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:51,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:51,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2043786358, now seen corresponding path program 1 times [2024-11-16 09:07:51,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:51,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971692775] [2024-11-16 09:07:51,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:51,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:51,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:51,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:51,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:51,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:51,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:51,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:51,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971692775] [2024-11-16 09:07:51,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971692775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:51,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:51,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:51,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205073716] [2024-11-16 09:07:51,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:51,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:51,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:51,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:51,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:51,413 INFO L87 Difference]: Start difference. First operand 14944 states and 23122 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:53,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:53,423 INFO L93 Difference]: Finished difference Result 31554 states and 48755 transitions. [2024-11-16 09:07:53,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:07:53,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:53,483 INFO L225 Difference]: With dead ends: 31554 [2024-11-16 09:07:53,483 INFO L226 Difference]: Without dead ends: 18752 [2024-11-16 09:07:53,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:07:53,516 INFO L432 NwaCegarLoop]: 4303 mSDtfsCounter, 5238 mSDsluCounter, 12754 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5257 SdHoareTripleChecker+Valid, 17057 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:53,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5257 Valid, 17057 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:07:53,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18752 states. [2024-11-16 09:07:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18752 to 14944. [2024-11-16 09:07:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14944 states, 14045 states have (on average 1.5295122819508722) internal successors, (21482), 14080 states have internal predecessors, (21482), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-16 09:07:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14944 states to 14944 states and 23089 transitions. [2024-11-16 09:07:54,223 INFO L78 Accepts]: Start accepts. Automaton has 14944 states and 23089 transitions. Word has length 173 [2024-11-16 09:07:54,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:54,226 INFO L471 AbstractCegarLoop]: Abstraction has 14944 states and 23089 transitions. [2024-11-16 09:07:54,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 14944 states and 23089 transitions. [2024-11-16 09:07:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:07:54,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:54,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:54,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:07:54,238 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:54,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:54,239 INFO L85 PathProgramCache]: Analyzing trace with hash 309002473, now seen corresponding path program 1 times [2024-11-16 09:07:54,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:54,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591375962] [2024-11-16 09:07:54,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:54,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:54,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:54,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:07:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:54,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:07:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:54,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:07:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:54,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:07:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:54,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:54,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591375962] [2024-11-16 09:07:54,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591375962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:54,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:54,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:07:54,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582077920] [2024-11-16 09:07:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:54,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:07:54,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:54,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:07:54,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:07:54,490 INFO L87 Difference]: Start difference. First operand 14944 states and 23089 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:58,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:58,815 INFO L93 Difference]: Finished difference Result 52334 states and 80190 transitions. [2024-11-16 09:07:58,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:07:58,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:07:58,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:58,914 INFO L225 Difference]: With dead ends: 52334 [2024-11-16 09:07:58,914 INFO L226 Difference]: Without dead ends: 39532 [2024-11-16 09:07:58,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:07:58,949 INFO L432 NwaCegarLoop]: 4600 mSDtfsCounter, 5906 mSDsluCounter, 18139 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5936 SdHoareTripleChecker+Valid, 22739 SdHoareTripleChecker+Invalid, 3217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:58,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5936 Valid, 22739 Invalid, 3217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3149 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 09:07:58,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39532 states. [2024-11-16 09:08:00,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39532 to 27397. [2024-11-16 09:08:00,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27397 states, 25666 states have (on average 1.501285747681758) internal successors, (38532), 25733 states have internal predecessors, (38532), 1275 states have call successors, (1275), 391 states have call predecessors, (1275), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-11-16 09:08:00,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27397 states to 27397 states and 41873 transitions. [2024-11-16 09:08:00,227 INFO L78 Accepts]: Start accepts. Automaton has 27397 states and 41873 transitions. Word has length 173 [2024-11-16 09:08:00,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:00,228 INFO L471 AbstractCegarLoop]: Abstraction has 27397 states and 41873 transitions. [2024-11-16 09:08:00,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:08:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 27397 states and 41873 transitions. [2024-11-16 09:08:00,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:08:00,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:00,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:00,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:08:00,248 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:00,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:00,248 INFO L85 PathProgramCache]: Analyzing trace with hash -584932438, now seen corresponding path program 1 times [2024-11-16 09:08:00,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:00,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254044977] [2024-11-16 09:08:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:00,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:00,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:08:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:08:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:00,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:08:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:00,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:08:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:00,466 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 09:08:00,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:00,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254044977] [2024-11-16 09:08:00,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254044977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:00,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:00,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:00,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029517100] [2024-11-16 09:08:00,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:00,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:00,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:00,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:00,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:00,469 INFO L87 Difference]: Start difference. First operand 27397 states and 41873 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:08:03,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:03,340 INFO L93 Difference]: Finished difference Result 59784 states and 92078 transitions. [2024-11-16 09:08:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:08:03,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:08:03,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:03,457 INFO L225 Difference]: With dead ends: 59784 [2024-11-16 09:08:03,458 INFO L226 Difference]: Without dead ends: 34529 [2024-11-16 09:08:03,522 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 09:08:03,523 INFO L432 NwaCegarLoop]: 4303 mSDtfsCounter, 5084 mSDsluCounter, 16956 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5103 SdHoareTripleChecker+Valid, 21259 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:03,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5103 Valid, 21259 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:08:03,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34529 states. [2024-11-16 09:08:04,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34529 to 27397. [2024-11-16 09:08:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27397 states, 25666 states have (on average 1.4987532143692044) internal successors, (38467), 25733 states have internal predecessors, (38467), 1275 states have call successors, (1275), 391 states have call predecessors, (1275), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-11-16 09:08:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27397 states to 27397 states and 41808 transitions. [2024-11-16 09:08:04,802 INFO L78 Accepts]: Start accepts. Automaton has 27397 states and 41808 transitions. Word has length 173 [2024-11-16 09:08:04,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:04,802 INFO L471 AbstractCegarLoop]: Abstraction has 27397 states and 41808 transitions. [2024-11-16 09:08:04,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:08:04,802 INFO L276 IsEmpty]: Start isEmpty. Operand 27397 states and 41808 transitions. [2024-11-16 09:08:04,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:08:04,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:04,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:04,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:08:04,823 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:04,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:04,824 INFO L85 PathProgramCache]: Analyzing trace with hash 494609609, now seen corresponding path program 1 times [2024-11-16 09:08:04,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:04,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191963018] [2024-11-16 09:08:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:04,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:04,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:04,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:08:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:05,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:08:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:05,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:08:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:05,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:08:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:05,043 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 09:08:05,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:05,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191963018] [2024-11-16 09:08:05,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191963018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:05,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:05,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:05,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250179724] [2024-11-16 09:08:05,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:05,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:05,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:05,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:05,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:05,046 INFO L87 Difference]: Start difference. First operand 27397 states and 41808 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:08:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:07,683 INFO L93 Difference]: Finished difference Result 59652 states and 91619 transitions. [2024-11-16 09:08:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:08:07,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 173 [2024-11-16 09:08:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:07,763 INFO L225 Difference]: With dead ends: 59652 [2024-11-16 09:08:07,763 INFO L226 Difference]: Without dead ends: 34397 [2024-11-16 09:08:07,813 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 09:08:07,813 INFO L432 NwaCegarLoop]: 4303 mSDtfsCounter, 5081 mSDsluCounter, 16956 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 21259 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:07,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 21259 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:08:07,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34397 states. [2024-11-16 09:08:09,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34397 to 27397. [2024-11-16 09:08:09,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27397 states, 25666 states have (on average 1.4962206810566507) internal successors, (38402), 25733 states have internal predecessors, (38402), 1275 states have call successors, (1275), 391 states have call predecessors, (1275), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-11-16 09:08:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27397 states to 27397 states and 41743 transitions. [2024-11-16 09:08:09,159 INFO L78 Accepts]: Start accepts. Automaton has 27397 states and 41743 transitions. Word has length 173 [2024-11-16 09:08:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:09,160 INFO L471 AbstractCegarLoop]: Abstraction has 27397 states and 41743 transitions. [2024-11-16 09:08:09,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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 09:08:09,160 INFO L276 IsEmpty]: Start isEmpty. Operand 27397 states and 41743 transitions. [2024-11-16 09:08:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:08:09,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:09,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:09,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:08:09,176 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:09,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:09,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1443929688, now seen corresponding path program 1 times [2024-11-16 09:08:09,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:09,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542432900] [2024-11-16 09:08:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:09,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:09,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:09,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:08:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:09,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:08:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:09,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:08:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:09,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:08:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:09,390 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 09:08:09,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542432900] [2024-11-16 09:08:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542432900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:09,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:09,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:09,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810352454] [2024-11-16 09:08:09,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:09,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:09,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:09,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:09,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:09,393 INFO L87 Difference]: Start difference. First operand 27397 states and 41743 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 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)