./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.05.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_label47+token_ring.05.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 eb02e23cacfa9dfcb6b910fbdb7f96346be741b0dc92ba35a0c3f2fde349f0cf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:16:39,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:16:40,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:16:40,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:16:40,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:16:40,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:16:40,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:16:40,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:16:40,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:16:40,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:16:40,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:16:40,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:16:40,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:16:40,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:16:40,076 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:16:40,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:16:40,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:16:40,077 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:16:40,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:16:40,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:16:40,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:16:40,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:16:40,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:16:40,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:16:40,082 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:16:40,082 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:16:40,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:16:40,082 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:16:40,083 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:16:40,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:16:40,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:16:40,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:16:40,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:16:40,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:16:40,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:16:40,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:16:40,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:16:40,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:16:40,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:16:40,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:16:40,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:16:40,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:16:40,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb02e23cacfa9dfcb6b910fbdb7f96346be741b0dc92ba35a0c3f2fde349f0cf [2024-11-16 09:16:40,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:16:40,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:16:40,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:16:40,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:16:40,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:16:40,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.05.cil-1.c [2024-11-16 09:16:41,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:16:42,075 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:16:42,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.05.cil-1.c [2024-11-16 09:16:42,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3b8bbc68/3c157d40f66347648d6ab7a394845a67/FLAGe59361f93 [2024-11-16 09:16:42,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3b8bbc68/3c157d40f66347648d6ab7a394845a67 [2024-11-16 09:16:42,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:16:42,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:16:42,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:16:42,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:16:42,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:16:42,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:16:42" (1/1) ... [2024-11-16 09:16:42,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e34bca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:42, skipping insertion in model container [2024-11-16 09:16:42,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:16:42" (1/1) ... [2024-11-16 09:16:42,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:16:43,654 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_label47+token_ring.05.cil-1.c[377612,377625] [2024-11-16 09:16:43,685 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_label47+token_ring.05.cil-1.c[383339,383352] [2024-11-16 09:16:43,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:16:43,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:16:44,451 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_label47+token_ring.05.cil-1.c[377612,377625] [2024-11-16 09:16:44,457 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_label47+token_ring.05.cil-1.c[383339,383352] [2024-11-16 09:16:44,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:16:44,523 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:16:44,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44 WrapperNode [2024-11-16 09:16:44,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:16:44,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:16:44,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:16:44,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:16:44,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:44,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:44,899 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12804 [2024-11-16 09:16:44,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:16:44,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:16:44,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:16:44,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:16:44,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:44,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:44,959 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:45,035 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 09:16:45,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:45,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:45,239 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:45,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:45,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:45,291 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:45,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:16:45,335 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:16:45,335 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:16:45,336 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:16:45,337 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (1/1) ... [2024-11-16 09:16:45,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:16:45,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:16:45,374 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 09:16:45,376 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 09:16:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:16:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:16:45,416 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:16:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:16:45,416 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:16:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:16:45,417 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:16:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:16:45,417 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:16:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:16:45,417 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:16:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:16:45,418 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:16:45,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:16:45,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:16:45,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:16:45,545 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:16:45,547 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:16:51,464 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:16:51,465 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:16:51,465 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:16:51,466 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:16:51,466 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:16:51,466 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:16:51,466 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:16:51,632 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-11-16 09:16:51,632 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:16:51,674 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:16:51,674 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:16:51,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:16:51 BoogieIcfgContainer [2024-11-16 09:16:51,675 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:16:51,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:16:51,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:16:51,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:16:51,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:16:42" (1/3) ... [2024-11-16 09:16:51,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f2bd5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:16:51, skipping insertion in model container [2024-11-16 09:16:51,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:16:44" (2/3) ... [2024-11-16 09:16:51,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f2bd5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:16:51, skipping insertion in model container [2024-11-16 09:16:51,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:16:51" (3/3) ... [2024-11-16 09:16:51,683 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.05.cil-1.c [2024-11-16 09:16:51,699 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:16:51,700 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:16:51,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:16:51,810 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;@746e539c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:16:51,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:16:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 2431 states, 2403 states have (on average 1.8381190178942988) internal successors, (4417), 2406 states have internal predecessors, (4417), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-16 09:16:51,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:16:51,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:51,843 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] [2024-11-16 09:16:51,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:51,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:51,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1831709318, now seen corresponding path program 1 times [2024-11-16 09:16:51,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:51,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994009293] [2024-11-16 09:16:51,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:51,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:52,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:52,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:16:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:52,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:16:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:52,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:16:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:52,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:16:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:52,363 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 09:16:52,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:52,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994009293] [2024-11-16 09:16:52,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994009293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:52,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:52,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:16:52,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369247646] [2024-11-16 09:16:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:52,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:16:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:52,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:16:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:16:52,401 INFO L87 Difference]: Start difference. First operand has 2431 states, 2403 states have (on average 1.8381190178942988) internal successors, (4417), 2406 states have internal predecessors, (4417), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:53,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:53,752 INFO L93 Difference]: Finished difference Result 5198 states and 9451 transitions. [2024-11-16 09:16:53,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:16:53,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:16:53,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:53,775 INFO L225 Difference]: With dead ends: 5198 [2024-11-16 09:16:53,775 INFO L226 Difference]: Without dead ends: 2708 [2024-11-16 09:16:53,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:16:53,786 INFO L432 NwaCegarLoop]: 4236 mSDtfsCounter, 4814 mSDsluCounter, 12727 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4826 SdHoareTripleChecker+Valid, 16963 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:53,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4826 Valid, 16963 Invalid, 1170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:16:53,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2024-11-16 09:16:53,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2578. [2024-11-16 09:16:53,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2530 states have (on average 1.8015810276679842) internal successors, (4558), 2533 states have internal predecessors, (4558), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-16 09:16:54,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 4627 transitions. [2024-11-16 09:16:54,003 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 4627 transitions. Word has length 106 [2024-11-16 09:16:54,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:54,003 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 4627 transitions. [2024-11-16 09:16:54,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:54,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 4627 transitions. [2024-11-16 09:16:54,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:16:54,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:54,006 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] [2024-11-16 09:16:54,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:16:54,007 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:54,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1057122552, now seen corresponding path program 1 times [2024-11-16 09:16:54,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:54,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48774998] [2024-11-16 09:16:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:54,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:54,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:54,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:16:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:54,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:16:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:54,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:16:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:54,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:16:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:54,178 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 09:16:54,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:54,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48774998] [2024-11-16 09:16:54,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48774998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:54,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:54,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:54,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68788942] [2024-11-16 09:16:54,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:54,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:54,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:54,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:54,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:54,182 INFO L87 Difference]: Start difference. First operand 2578 states and 4627 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:55,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:55,014 INFO L93 Difference]: Finished difference Result 3157 states and 5509 transitions. [2024-11-16 09:16:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:16:55,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:16:55,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:55,025 INFO L225 Difference]: With dead ends: 3157 [2024-11-16 09:16:55,025 INFO L226 Difference]: Without dead ends: 2715 [2024-11-16 09:16:55,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:16:55,029 INFO L432 NwaCegarLoop]: 4150 mSDtfsCounter, 4545 mSDsluCounter, 16446 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4558 SdHoareTripleChecker+Valid, 20596 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:55,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4558 Valid, 20596 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:16:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2024-11-16 09:16:55,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2578. [2024-11-16 09:16:55,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2530 states have (on average 1.8007905138339921) internal successors, (4556), 2533 states have internal predecessors, (4556), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-16 09:16:55,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 4625 transitions. [2024-11-16 09:16:55,091 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 4625 transitions. Word has length 106 [2024-11-16 09:16:55,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:55,092 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 4625 transitions. [2024-11-16 09:16:55,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:55,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 4625 transitions. [2024-11-16 09:16:55,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:16:55,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:55,094 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] [2024-11-16 09:16:55,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:16:55,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:55,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:55,095 INFO L85 PathProgramCache]: Analyzing trace with hash 671755769, now seen corresponding path program 1 times [2024-11-16 09:16:55,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:55,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969617814] [2024-11-16 09:16:55,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:55,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:55,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:55,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:16:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:55,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:16:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:55,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:16:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:55,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:16:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:55,237 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 09:16:55,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:55,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969617814] [2024-11-16 09:16:55,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969617814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:55,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:55,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:55,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236258035] [2024-11-16 09:16:55,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:55,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:55,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:55,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:55,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:55,241 INFO L87 Difference]: Start difference. First operand 2578 states and 4625 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:56,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:56,778 INFO L93 Difference]: Finished difference Result 3439 states and 5920 transitions. [2024-11-16 09:16:56,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:16:56,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:16:56,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:56,793 INFO L225 Difference]: With dead ends: 3439 [2024-11-16 09:16:56,794 INFO L226 Difference]: Without dead ends: 2997 [2024-11-16 09:16:56,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:16:56,796 INFO L432 NwaCegarLoop]: 4320 mSDtfsCounter, 4742 mSDsluCounter, 17089 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4754 SdHoareTripleChecker+Valid, 21409 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:56,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4754 Valid, 21409 Invalid, 1779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:16:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2024-11-16 09:16:56,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2788. [2024-11-16 09:16:56,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 2719 states have (on average 1.7752850312614932) internal successors, (4827), 2723 states have internal predecessors, (4827), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-16 09:16:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 4926 transitions. [2024-11-16 09:16:56,877 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 4926 transitions. Word has length 106 [2024-11-16 09:16:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:56,878 INFO L471 AbstractCegarLoop]: Abstraction has 2788 states and 4926 transitions. [2024-11-16 09:16:56,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:56,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 4926 transitions. [2024-11-16 09:16:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:16:56,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:56,880 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] [2024-11-16 09:16:56,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:16:56,880 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:56,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1973074728, now seen corresponding path program 1 times [2024-11-16 09:16:56,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:56,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138398071] [2024-11-16 09:16:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:56,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:56,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:56,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:16:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:57,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:16:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:57,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:16:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:57,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:16:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:16:57,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:57,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138398071] [2024-11-16 09:16:57,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138398071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:57,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:57,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:57,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026922376] [2024-11-16 09:16:57,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:57,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:57,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:57,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:57,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:57,056 INFO L87 Difference]: Start difference. First operand 2788 states and 4926 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:58,558 INFO L93 Difference]: Finished difference Result 4197 states and 7039 transitions. [2024-11-16 09:16:58,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:16:58,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:16:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:58,573 INFO L225 Difference]: With dead ends: 4197 [2024-11-16 09:16:58,573 INFO L226 Difference]: Without dead ends: 3545 [2024-11-16 09:16:58,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:16:58,578 INFO L432 NwaCegarLoop]: 4318 mSDtfsCounter, 4740 mSDsluCounter, 17089 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 21407 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:58,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4752 Valid, 21407 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:16:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2024-11-16 09:16:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3210. [2024-11-16 09:16:58,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 3099 states have (on average 1.7334624072281382) internal successors, (5372), 3105 states have internal predecessors, (5372), 75 states have call successors, (75), 30 states have call predecessors, (75), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-16 09:16:58,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 5535 transitions. [2024-11-16 09:16:58,703 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 5535 transitions. Word has length 106 [2024-11-16 09:16:58,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:58,703 INFO L471 AbstractCegarLoop]: Abstraction has 3210 states and 5535 transitions. [2024-11-16 09:16:58,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:58,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 5535 transitions. [2024-11-16 09:16:58,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:16:58,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:58,706 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] [2024-11-16 09:16:58,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:16:58,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:58,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:58,707 INFO L85 PathProgramCache]: Analyzing trace with hash -118729191, now seen corresponding path program 1 times [2024-11-16 09:16:58,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:58,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551035756] [2024-11-16 09:16:58,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:58,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:16:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:16:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:16:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:16:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:58,894 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 09:16:58,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:58,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551035756] [2024-11-16 09:16:58,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551035756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:58,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:58,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:58,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773844558] [2024-11-16 09:16:58,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:58,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:58,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:58,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:58,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:58,899 INFO L87 Difference]: Start difference. First operand 3210 states and 5535 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:00,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:00,303 INFO L93 Difference]: Finished difference Result 5669 states and 9204 transitions. [2024-11-16 09:17:00,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:17:00,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:17:00,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:00,318 INFO L225 Difference]: With dead ends: 5669 [2024-11-16 09:17:00,318 INFO L226 Difference]: Without dead ends: 4595 [2024-11-16 09:17:00,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:17:00,323 INFO L432 NwaCegarLoop]: 4318 mSDtfsCounter, 4742 mSDsluCounter, 17089 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4754 SdHoareTripleChecker+Valid, 21407 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:00,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4754 Valid, 21407 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:17:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4595 states. [2024-11-16 09:17:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4595 to 4056. [2024-11-16 09:17:00,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 3861 states have (on average 1.6741776741776742) internal successors, (6464), 3871 states have internal predecessors, (6464), 131 states have call successors, (131), 54 states have call predecessors, (131), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-16 09:17:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 6761 transitions. [2024-11-16 09:17:00,438 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 6761 transitions. Word has length 106 [2024-11-16 09:17:00,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:00,438 INFO L471 AbstractCegarLoop]: Abstraction has 4056 states and 6761 transitions. [2024-11-16 09:17:00,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:00,438 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 6761 transitions. [2024-11-16 09:17:00,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:17:00,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:00,442 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] [2024-11-16 09:17:00,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:17:00,442 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:00,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:00,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1049467064, now seen corresponding path program 1 times [2024-11-16 09:17:00,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:00,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206367140] [2024-11-16 09:17:00,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:00,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:00,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:00,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:00,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:00,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:00,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:00,579 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 09:17:00,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:00,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206367140] [2024-11-16 09:17:00,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206367140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:00,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:00,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:00,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771447028] [2024-11-16 09:17:00,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:00,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:00,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:00,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:00,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:00,581 INFO L87 Difference]: Start difference. First operand 4056 states and 6761 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:01,967 INFO L93 Difference]: Finished difference Result 9237 states and 14484 transitions. [2024-11-16 09:17:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:17:01,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:17:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:01,994 INFO L225 Difference]: With dead ends: 9237 [2024-11-16 09:17:01,994 INFO L226 Difference]: Without dead ends: 7317 [2024-11-16 09:17:02,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:17:02,002 INFO L432 NwaCegarLoop]: 4316 mSDtfsCounter, 4951 mSDsluCounter, 17081 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 21397 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:02,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 21397 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:17:02,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7317 states. [2024-11-16 09:17:02,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7317 to 5739. [2024-11-16 09:17:02,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 5384 states have (on average 1.6080980683506687) internal successors, (8658), 5402 states have internal predecessors, (8658), 235 states have call successors, (235), 102 states have call predecessors, (235), 118 states have return successors, (332), 250 states have call predecessors, (332), 235 states have call successors, (332) [2024-11-16 09:17:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 9225 transitions. [2024-11-16 09:17:02,254 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 9225 transitions. Word has length 106 [2024-11-16 09:17:02,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:02,254 INFO L471 AbstractCegarLoop]: Abstraction has 5739 states and 9225 transitions. [2024-11-16 09:17:02,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:02,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 9225 transitions. [2024-11-16 09:17:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:17:02,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:02,259 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] [2024-11-16 09:17:02,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:17:02,259 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:02,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:02,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2037582057, now seen corresponding path program 1 times [2024-11-16 09:17:02,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:02,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561223663] [2024-11-16 09:17:02,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:02,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:02,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:02,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:02,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:02,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:02,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:02,376 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 09:17:02,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:02,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561223663] [2024-11-16 09:17:02,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561223663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:02,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:02,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:02,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869620101] [2024-11-16 09:17:02,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:02,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:02,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:02,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:02,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:02,380 INFO L87 Difference]: Start difference. First operand 5739 states and 9225 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:03,109 INFO L93 Difference]: Finished difference Result 10281 states and 16062 transitions. [2024-11-16 09:17:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:17:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:03,128 INFO L225 Difference]: With dead ends: 10281 [2024-11-16 09:17:03,129 INFO L226 Difference]: Without dead ends: 6678 [2024-11-16 09:17:03,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:17:03,138 INFO L432 NwaCegarLoop]: 4149 mSDtfsCounter, 4553 mSDsluCounter, 16444 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4566 SdHoareTripleChecker+Valid, 20593 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:03,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4566 Valid, 20593 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:17:03,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6678 states. [2024-11-16 09:17:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6678 to 5739. [2024-11-16 09:17:03,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 5384 states have (on average 1.6049405646359585) internal successors, (8641), 5402 states have internal predecessors, (8641), 235 states have call successors, (235), 102 states have call predecessors, (235), 118 states have return successors, (332), 250 states have call predecessors, (332), 235 states have call successors, (332) [2024-11-16 09:17:03,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 9208 transitions. [2024-11-16 09:17:03,319 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 9208 transitions. Word has length 106 [2024-11-16 09:17:03,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:03,319 INFO L471 AbstractCegarLoop]: Abstraction has 5739 states and 9208 transitions. [2024-11-16 09:17:03,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:03,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 9208 transitions. [2024-11-16 09:17:03,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:17:03,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:03,324 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:17:03,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:17:03,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:03,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:03,324 INFO L85 PathProgramCache]: Analyzing trace with hash 772329688, now seen corresponding path program 1 times [2024-11-16 09:17:03,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:03,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735593187] [2024-11-16 09:17:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:03,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:03,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:03,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735593187] [2024-11-16 09:17:03,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735593187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:03,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:03,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:03,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248622577] [2024-11-16 09:17:03,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:03,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:03,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:03,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:03,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:03,444 INFO L87 Difference]: Start difference. First operand 5739 states and 9208 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:05,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:05,031 INFO L93 Difference]: Finished difference Result 15270 states and 23366 transitions. [2024-11-16 09:17:05,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:17:05,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:17:05,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:05,060 INFO L225 Difference]: With dead ends: 15270 [2024-11-16 09:17:05,060 INFO L226 Difference]: Without dead ends: 11667 [2024-11-16 09:17:05,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:17:05,073 INFO L432 NwaCegarLoop]: 4316 mSDtfsCounter, 4865 mSDsluCounter, 17081 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 21397 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:05,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 21397 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:17:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11667 states. [2024-11-16 09:17:05,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11667 to 9111. [2024-11-16 09:17:05,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9111 states, 8444 states have (on average 1.543462813832307) internal successors, (13033), 8478 states have internal predecessors, (13033), 435 states have call successors, (435), 198 states have call predecessors, (435), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:17:05,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9111 states to 9111 states and 14178 transitions. [2024-11-16 09:17:05,421 INFO L78 Accepts]: Start accepts. Automaton has 9111 states and 14178 transitions. Word has length 106 [2024-11-16 09:17:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:05,422 INFO L471 AbstractCegarLoop]: Abstraction has 9111 states and 14178 transitions. [2024-11-16 09:17:05,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:05,422 INFO L276 IsEmpty]: Start isEmpty. Operand 9111 states and 14178 transitions. [2024-11-16 09:17:05,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:17:05,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:05,428 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] [2024-11-16 09:17:05,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:17:05,428 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:05,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:05,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1555708663, now seen corresponding path program 1 times [2024-11-16 09:17:05,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:05,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810615825] [2024-11-16 09:17:05,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:05,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:05,563 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 09:17:05,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:05,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810615825] [2024-11-16 09:17:05,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810615825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:05,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:05,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:05,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877036061] [2024-11-16 09:17:05,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:05,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:05,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:05,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:05,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:05,566 INFO L87 Difference]: Start difference. First operand 9111 states and 14178 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:06,699 INFO L93 Difference]: Finished difference Result 17757 states and 27217 transitions. [2024-11-16 09:17:06,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:06,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:17:06,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:06,732 INFO L225 Difference]: With dead ends: 17757 [2024-11-16 09:17:06,733 INFO L226 Difference]: Without dead ends: 10782 [2024-11-16 09:17:06,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:17:06,753 INFO L432 NwaCegarLoop]: 4149 mSDtfsCounter, 4552 mSDsluCounter, 16444 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4565 SdHoareTripleChecker+Valid, 20593 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:06,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4565 Valid, 20593 Invalid, 868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:17:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2024-11-16 09:17:07,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 9111. [2024-11-16 09:17:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9111 states, 8444 states have (on average 1.5395547134059688) internal successors, (13000), 8478 states have internal predecessors, (13000), 435 states have call successors, (435), 198 states have call predecessors, (435), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:17:07,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9111 states to 9111 states and 14145 transitions. [2024-11-16 09:17:07,083 INFO L78 Accepts]: Start accepts. Automaton has 9111 states and 14145 transitions. Word has length 106 [2024-11-16 09:17:07,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:07,083 INFO L471 AbstractCegarLoop]: Abstraction has 9111 states and 14145 transitions. [2024-11-16 09:17:07,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:07,084 INFO L276 IsEmpty]: Start isEmpty. Operand 9111 states and 14145 transitions. [2024-11-16 09:17:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:17:07,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:07,090 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] [2024-11-16 09:17:07,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:17:07,090 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:07,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:07,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1026789624, now seen corresponding path program 1 times [2024-11-16 09:17:07,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:07,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189951025] [2024-11-16 09:17:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:07,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:07,203 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 09:17:07,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:07,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189951025] [2024-11-16 09:17:07,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189951025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:07,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:07,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:07,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184467280] [2024-11-16 09:17:07,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:07,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:07,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:07,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:07,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:07,205 INFO L87 Difference]: Start difference. First operand 9111 states and 14145 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:08,167 INFO L93 Difference]: Finished difference Result 17723 states and 27050 transitions. [2024-11-16 09:17:08,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:17:08,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:17:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:08,194 INFO L225 Difference]: With dead ends: 17723 [2024-11-16 09:17:08,194 INFO L226 Difference]: Without dead ends: 10748 [2024-11-16 09:17:08,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:17:08,213 INFO L432 NwaCegarLoop]: 4149 mSDtfsCounter, 4550 mSDsluCounter, 16444 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4563 SdHoareTripleChecker+Valid, 20593 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:08,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4563 Valid, 20593 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:17:08,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10748 states. [2024-11-16 09:17:08,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10748 to 9111. [2024-11-16 09:17:08,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9111 states, 8444 states have (on average 1.5356466129796305) internal successors, (12967), 8478 states have internal predecessors, (12967), 435 states have call successors, (435), 198 states have call predecessors, (435), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:17:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9111 states to 9111 states and 14112 transitions. [2024-11-16 09:17:08,560 INFO L78 Accepts]: Start accepts. Automaton has 9111 states and 14112 transitions. Word has length 106 [2024-11-16 09:17:08,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:08,561 INFO L471 AbstractCegarLoop]: Abstraction has 9111 states and 14112 transitions. [2024-11-16 09:17:08,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 9111 states and 14112 transitions. [2024-11-16 09:17:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:17:08,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:08,570 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] [2024-11-16 09:17:08,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:17:08,571 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:08,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:08,571 INFO L85 PathProgramCache]: Analyzing trace with hash 455538391, now seen corresponding path program 1 times [2024-11-16 09:17:08,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:08,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393757810] [2024-11-16 09:17:08,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:08,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:08,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:08,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:08,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:08,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:08,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:17:08,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:08,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393757810] [2024-11-16 09:17:08,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393757810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:08,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:08,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:17:08,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20383786] [2024-11-16 09:17:08,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:08,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:17:08,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:08,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:17:08,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:17:08,707 INFO L87 Difference]: Start difference. First operand 9111 states and 14112 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:10,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:10,596 INFO L93 Difference]: Finished difference Result 26288 states and 39530 transitions. [2024-11-16 09:17:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:17:10,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:17:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:10,641 INFO L225 Difference]: With dead ends: 26288 [2024-11-16 09:17:10,641 INFO L226 Difference]: Without dead ends: 19313 [2024-11-16 09:17:10,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:17:10,663 INFO L432 NwaCegarLoop]: 4316 mSDtfsCounter, 4730 mSDsluCounter, 17081 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4748 SdHoareTripleChecker+Valid, 21397 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:10,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4748 Valid, 21397 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:17:10,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19313 states. [2024-11-16 09:17:11,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19313 to 15902. [2024-11-16 09:17:11,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15902 states, 14627 states have (on average 1.488001640801258) internal successors, (21765), 14693 states have internal predecessors, (21765), 819 states have call successors, (819), 390 states have call predecessors, (819), 454 states have return successors, (1612), 882 states have call predecessors, (1612), 819 states have call successors, (1612) [2024-11-16 09:17:11,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15902 states to 15902 states and 24196 transitions. [2024-11-16 09:17:11,421 INFO L78 Accepts]: Start accepts. Automaton has 15902 states and 24196 transitions. Word has length 106 [2024-11-16 09:17:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:11,421 INFO L471 AbstractCegarLoop]: Abstraction has 15902 states and 24196 transitions. [2024-11-16 09:17:11,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:11,422 INFO L276 IsEmpty]: Start isEmpty. Operand 15902 states and 24196 transitions. [2024-11-16 09:17:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:17:11,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:11,433 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] [2024-11-16 09:17:11,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:17:11,434 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:11,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:11,434 INFO L85 PathProgramCache]: Analyzing trace with hash 575658264, now seen corresponding path program 1 times [2024-11-16 09:17:11,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:11,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674080789] [2024-11-16 09:17:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:11,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:11,541 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 09:17:11,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:11,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674080789] [2024-11-16 09:17:11,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674080789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:11,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:17:11,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:17:11,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361369750] [2024-11-16 09:17:11,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:11,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:17:11,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:11,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:17:11,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:17:11,543 INFO L87 Difference]: Start difference. First operand 15902 states and 24196 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:14,104 INFO L93 Difference]: Finished difference Result 48732 states and 72821 transitions. [2024-11-16 09:17:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:17:14,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 106 [2024-11-16 09:17:14,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:14,180 INFO L225 Difference]: With dead ends: 48732 [2024-11-16 09:17:14,180 INFO L226 Difference]: Without dead ends: 34967 [2024-11-16 09:17:14,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:17:14,204 INFO L432 NwaCegarLoop]: 4357 mSDtfsCounter, 4983 mSDsluCounter, 12677 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 17034 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:14,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5014 Valid, 17034 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:17:14,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34967 states. [2024-11-16 09:17:15,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34967 to 29208. [2024-11-16 09:17:15,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29208 states, 26664 states have (on average 1.4516201620162017) internal successors, (38706), 26859 states have internal predecessors, (38706), 1634 states have call successors, (1634), 780 states have call predecessors, (1634), 908 states have return successors, (3157), 1632 states have call predecessors, (3157), 1634 states have call successors, (3157) [2024-11-16 09:17:15,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29208 states to 29208 states and 43497 transitions. [2024-11-16 09:17:15,545 INFO L78 Accepts]: Start accepts. Automaton has 29208 states and 43497 transitions. Word has length 106 [2024-11-16 09:17:15,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:15,545 INFO L471 AbstractCegarLoop]: Abstraction has 29208 states and 43497 transitions. [2024-11-16 09:17:15,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:17:15,546 INFO L276 IsEmpty]: Start isEmpty. Operand 29208 states and 43497 transitions. [2024-11-16 09:17:15,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 09:17:15,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:15,596 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:17:15,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:17:15,597 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:15,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:15,597 INFO L85 PathProgramCache]: Analyzing trace with hash -482283174, now seen corresponding path program 1 times [2024-11-16 09:17:15,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:15,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615778537] [2024-11-16 09:17:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:15,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:17:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:17:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:17:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:17:15,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:15,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615778537] [2024-11-16 09:17:15,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615778537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:17:15,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806580630] [2024-11-16 09:17:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:15,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:17:15,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:17:15,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:17:15,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:17:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:15,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:17:15,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:17:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-16 09:17:15,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:17:15,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806580630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:15,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:17:15,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:17:15,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293929540] [2024-11-16 09:17:15,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:15,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:17:15,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:17:15,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:17:15,960 INFO L87 Difference]: Start difference. First operand 29208 states and 43497 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:17:18,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:18,358 INFO L93 Difference]: Finished difference Result 82569 states and 122141 transitions. [2024-11-16 09:17:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:17:18,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 175 [2024-11-16 09:17:18,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:18,529 INFO L225 Difference]: With dead ends: 82569 [2024-11-16 09:17:18,529 INFO L226 Difference]: Without dead ends: 55498 [2024-11-16 09:17:18,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:17:18,597 INFO L432 NwaCegarLoop]: 4290 mSDtfsCounter, 4239 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4239 SdHoareTripleChecker+Valid, 4592 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:18,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4239 Valid, 4592 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:17:18,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55498 states. [2024-11-16 09:17:21,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55498 to 54975. [2024-11-16 09:17:21,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54975 states, 50023 states have (on average 1.4367990724266837) internal successors, (71873), 50411 states have internal predecessors, (71873), 3134 states have call successors, (3134), 1560 states have call predecessors, (3134), 1816 states have return successors, (6117), 3067 states have call predecessors, (6117), 3134 states have call successors, (6117) [2024-11-16 09:17:21,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54975 states to 54975 states and 81124 transitions. [2024-11-16 09:17:21,363 INFO L78 Accepts]: Start accepts. Automaton has 54975 states and 81124 transitions. Word has length 175 [2024-11-16 09:17:21,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:21,364 INFO L471 AbstractCegarLoop]: Abstraction has 54975 states and 81124 transitions. [2024-11-16 09:17:21,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:17:21,364 INFO L276 IsEmpty]: Start isEmpty. Operand 54975 states and 81124 transitions. [2024-11-16 09:17:21,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 09:17:21,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:21,438 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:17:21,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:17:21,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 09:17:21,643 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:21,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:21,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1612505888, now seen corresponding path program 1 times [2024-11-16 09:17:21,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:21,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566248082] [2024-11-16 09:17:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:21,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:17:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:17:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:17:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:17:21,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:21,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566248082] [2024-11-16 09:17:21,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566248082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:17:21,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456821026] [2024-11-16 09:17:21,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:21,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:17:21,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:17:21,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:17:21,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:17:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:22,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:17:22,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:17:22,101 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:17:22,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:17:22,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456821026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:22,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:17:22,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:17:22,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850617866] [2024-11-16 09:17:22,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:22,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:17:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:22,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:17:22,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:17:22,108 INFO L87 Difference]: Start difference. First operand 54975 states and 81124 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:17:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:17:26,935 INFO L93 Difference]: Finished difference Result 159090 states and 234572 transitions. [2024-11-16 09:17:26,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:17:26,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 175 [2024-11-16 09:17:26,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:17:27,258 INFO L225 Difference]: With dead ends: 159090 [2024-11-16 09:17:27,258 INFO L226 Difference]: Without dead ends: 106252 [2024-11-16 09:17:27,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:17:27,368 INFO L432 NwaCegarLoop]: 4290 mSDtfsCounter, 4233 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4233 SdHoareTripleChecker+Valid, 4592 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:17:27,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4233 Valid, 4592 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:17:27,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106252 states. [2024-11-16 09:17:33,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106252 to 105209. [2024-11-16 09:17:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105209 states, 95571 states have (on average 1.4297956493078445) internal successors, (136647), 96345 states have internal predecessors, (136647), 6004 states have call successors, (6004), 3120 states have call predecessors, (6004), 3632 states have return successors, (11907), 5807 states have call predecessors, (11907), 6004 states have call successors, (11907) [2024-11-16 09:17:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105209 states to 105209 states and 154558 transitions. [2024-11-16 09:17:33,465 INFO L78 Accepts]: Start accepts. Automaton has 105209 states and 154558 transitions. Word has length 175 [2024-11-16 09:17:33,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:17:33,466 INFO L471 AbstractCegarLoop]: Abstraction has 105209 states and 154558 transitions. [2024-11-16 09:17:33,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:17:33,466 INFO L276 IsEmpty]: Start isEmpty. Operand 105209 states and 154558 transitions. [2024-11-16 09:17:33,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 09:17:33,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:17:33,620 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:17:33,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 09:17:33,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-16 09:17:33,821 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:17:33,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:17:33,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1582687462, now seen corresponding path program 1 times [2024-11-16 09:17:33,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:17:33,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289138170] [2024-11-16 09:17:33,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:33,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:17:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:17:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:17:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:17:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:17:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:17:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:17:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:17:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:17:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:33,984 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:17:33,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:17:33,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289138170] [2024-11-16 09:17:33,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289138170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:17:33,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929611763] [2024-11-16 09:17:33,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:17:33,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:17:33,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:17:33,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:17:33,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:17:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:17:34,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:17:34,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:17:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:17:34,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:17:34,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929611763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:17:34,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:17:34,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:17:34,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959670056] [2024-11-16 09:17:34,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:17:34,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:17:34,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:17:34,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:17:34,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:17:34,188 INFO L87 Difference]: Start difference. First operand 105209 states and 154558 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)