./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52ae6c88c77f2a2d1ba84720becde4fbcf955211b08c092cae514b34c6358b12 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:06:20,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:06:21,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:06:21,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:06:21,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:06:21,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:06:21,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:06:21,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:06:21,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:06:21,073 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:06:21,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:06:21,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:06:21,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:06:21,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:06:21,076 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:06:21,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:06:21,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:06:21,077 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:06:21,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:06:21,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:06:21,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:06:21,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:06:21,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:06:21,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:06:21,080 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:06:21,080 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:06:21,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:06:21,081 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:06:21,081 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:06:21,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:06:21,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:06:21,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:06:21,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:06:21,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:06:21,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:06:21,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:06:21,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:06:21,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:06:21,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:06:21,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:06:21,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:06:21,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:06:21,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ae6c88c77f2a2d1ba84720becde4fbcf955211b08c092cae514b34c6358b12 [2024-11-16 09:06:21,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:06:21,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:06:21,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:06:21,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:06:21,369 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:06:21,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c [2024-11-16 09:06:22,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:06:23,435 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:06:23,438 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c [2024-11-16 09:06:23,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616a8982e/2de288aaa5c44b60a3cf8d78d8078b29/FLAG3dac774ff [2024-11-16 09:06:23,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616a8982e/2de288aaa5c44b60a3cf8d78d8078b29 [2024-11-16 09:06:23,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:06:23,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:06:23,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:06:23,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:06:23,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:06:23,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:06:23" (1/1) ... [2024-11-16 09:06:23,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c52a5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:23, skipping insertion in model container [2024-11-16 09:06:23,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:06:23" (1/1) ... [2024-11-16 09:06:23,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:06:25,295 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c[378560,378573] [2024-11-16 09:06:25,324 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c[383339,383352] [2024-11-16 09:06:25,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:06:25,578 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:06:26,374 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c[378560,378573] [2024-11-16 09:06:26,382 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c[383339,383352] [2024-11-16 09:06:26,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:06:26,466 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:06:26,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26 WrapperNode [2024-11-16 09:06:26,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:06:26,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:06:26,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:06:26,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:06:26,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:26,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:26,916 INFO L138 Inliner]: procedures = 54, calls = 57, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 12810 [2024-11-16 09:06:26,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:06:26,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:06:26,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:06:26,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:06:26,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:26,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:26,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:27,199 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:06:27,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:27,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:27,340 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:27,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:27,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:27,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:27,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:06:27,577 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:06:27,577 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:06:27,577 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:06:27,579 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (1/1) ... [2024-11-16 09:06:27,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:06:27,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:27,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:06:27,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:06:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:06:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:06:27,755 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:06:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:06:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:06:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:06:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:06:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:06:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:06:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:06:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:06:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:06:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:06:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:06:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:06:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:06:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:06:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:06:27,966 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:06:27,969 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:06:35,603 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:06:35,604 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:06:35,604 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:06:35,605 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:06:35,605 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:06:35,606 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:06:35,606 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:06:35,967 INFO L? ?]: Removed 1717 outVars from TransFormulas that were not future-live. [2024-11-16 09:06:35,968 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:06:36,027 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:06:36,028 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:06:36,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:06:36 BoogieIcfgContainer [2024-11-16 09:06:36,029 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:06:36,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:06:36,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:06:36,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:06:36,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:06:23" (1/3) ... [2024-11-16 09:06:36,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3fe9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:06:36, skipping insertion in model container [2024-11-16 09:06:36,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:06:26" (2/3) ... [2024-11-16 09:06:36,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3fe9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:06:36, skipping insertion in model container [2024-11-16 09:06:36,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:06:36" (3/3) ... [2024-11-16 09:06:36,038 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.05.cil-2.c [2024-11-16 09:06:36,056 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:06:36,057 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:06:36,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:06:36,193 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;@671cacfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:06:36,193 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:06:36,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 2439 states, 2408 states have (on average 1.8384551495016612) internal successors, (4427), 2413 states have internal predecessors, (4427), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:06:36,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:36,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:36,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:36,222 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:36,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:36,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1318933517, now seen corresponding path program 1 times [2024-11-16 09:06:36,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:36,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238371248] [2024-11-16 09:06:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:36,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,869 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 09:06:36,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:36,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238371248] [2024-11-16 09:06:36,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238371248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:36,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:36,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:06:36,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889330455] [2024-11-16 09:06:36,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:36,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:06:36,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:06:36,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:06:36,914 INFO L87 Difference]: Start difference. First operand has 2439 states, 2408 states have (on average 1.8384551495016612) internal successors, (4427), 2413 states have internal predecessors, (4427), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:38,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:38,597 INFO L93 Difference]: Finished difference Result 5220 states and 9493 transitions. [2024-11-16 09:06:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:06:38,600 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:38,633 INFO L225 Difference]: With dead ends: 5220 [2024-11-16 09:06:38,634 INFO L226 Difference]: Without dead ends: 2722 [2024-11-16 09:06:38,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:38,650 INFO L432 NwaCegarLoop]: 4246 mSDtfsCounter, 4834 mSDsluCounter, 12761 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 17007 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:38,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4846 Valid, 17007 Invalid, 1186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:06:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2024-11-16 09:06:38,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2590. [2024-11-16 09:06:38,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 2540 states have (on average 1.8023622047244094) internal successors, (4578), 2544 states have internal predecessors, (4578), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-16 09:06:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 4649 transitions. [2024-11-16 09:06:38,807 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 4649 transitions. Word has length 107 [2024-11-16 09:06:38,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:38,808 INFO L471 AbstractCegarLoop]: Abstraction has 2590 states and 4649 transitions. [2024-11-16 09:06:38,808 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:38,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 4649 transitions. [2024-11-16 09:06:38,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:38,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:38,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:38,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:06:38,814 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:38,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1959458763, now seen corresponding path program 1 times [2024-11-16 09:06:38,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:38,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010377013] [2024-11-16 09:06:38,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:38,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:38,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:38,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:39,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:39,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:39,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:39,111 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 09:06:39,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:39,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010377013] [2024-11-16 09:06:39,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010377013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:39,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:39,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:39,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389433688] [2024-11-16 09:06:39,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:39,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:39,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:39,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:39,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:39,119 INFO L87 Difference]: Start difference. First operand 2590 states and 4649 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:40,119 INFO L93 Difference]: Finished difference Result 3181 states and 5553 transitions. [2024-11-16 09:06:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:06:40,120 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:40,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:40,134 INFO L225 Difference]: With dead ends: 3181 [2024-11-16 09:06:40,135 INFO L226 Difference]: Without dead ends: 2727 [2024-11-16 09:06:40,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:40,139 INFO L432 NwaCegarLoop]: 4160 mSDtfsCounter, 4646 mSDsluCounter, 12376 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4659 SdHoareTripleChecker+Valid, 16536 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:40,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4659 Valid, 16536 Invalid, 902 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [75 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:06:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2024-11-16 09:06:40,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 2590. [2024-11-16 09:06:40,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 2540 states have (on average 1.8015748031496064) internal successors, (4576), 2544 states have internal predecessors, (4576), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-16 09:06:40,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 4647 transitions. [2024-11-16 09:06:40,217 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 4647 transitions. Word has length 107 [2024-11-16 09:06:40,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:40,218 INFO L471 AbstractCegarLoop]: Abstraction has 2590 states and 4647 transitions. [2024-11-16 09:06:40,218 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:40,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 4647 transitions. [2024-11-16 09:06:40,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:40,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:40,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:40,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:06:40,221 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:40,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1020927148, now seen corresponding path program 1 times [2024-11-16 09:06:40,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:40,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495673702] [2024-11-16 09:06:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:40,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:40,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:40,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:40,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:40,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:40,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:40,449 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 09:06:40,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:40,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495673702] [2024-11-16 09:06:40,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495673702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:40,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:40,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:40,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656202763] [2024-11-16 09:06:40,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:40,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:40,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:40,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:40,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:40,455 INFO L87 Difference]: Start difference. First operand 2590 states and 4647 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:42,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:42,156 INFO L93 Difference]: Finished difference Result 3470 states and 5976 transitions. [2024-11-16 09:06:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:06:42,157 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:42,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:42,170 INFO L225 Difference]: With dead ends: 3470 [2024-11-16 09:06:42,170 INFO L226 Difference]: Without dead ends: 3016 [2024-11-16 09:06:42,173 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 09:06:42,174 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 4758 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21503 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:42,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21503 Invalid, 1805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:06:42,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2024-11-16 09:06:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2805. [2024-11-16 09:06:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2734 states have (on average 1.776517922457937) internal successors, (4857), 2739 states have internal predecessors, (4857), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-16 09:06:42,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 4958 transitions. [2024-11-16 09:06:42,261 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 4958 transitions. Word has length 107 [2024-11-16 09:06:42,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:42,261 INFO L471 AbstractCegarLoop]: Abstraction has 2805 states and 4958 transitions. [2024-11-16 09:06:42,262 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 4958 transitions. [2024-11-16 09:06:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:42,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:42,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:42,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:06:42,264 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:42,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:42,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1406293931, now seen corresponding path program 1 times [2024-11-16 09:06:42,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:42,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570609760] [2024-11-16 09:06:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:42,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:42,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:42,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:42,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:42,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:42,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:42,449 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 09:06:42,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:42,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570609760] [2024-11-16 09:06:42,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570609760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:42,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:42,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:42,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221990620] [2024-11-16 09:06:42,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:42,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:42,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:42,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:42,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:42,452 INFO L87 Difference]: Start difference. First operand 2805 states and 4958 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:44,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:44,434 INFO L93 Difference]: Finished difference Result 4243 states and 7125 transitions. [2024-11-16 09:06:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:06:44,435 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:44,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:44,450 INFO L225 Difference]: With dead ends: 4243 [2024-11-16 09:06:44,450 INFO L226 Difference]: Without dead ends: 3574 [2024-11-16 09:06:44,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:06:44,455 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4756 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 21501 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:44,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 21501 Invalid, 1795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:06:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2024-11-16 09:06:44,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3237. [2024-11-16 09:06:44,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3124 states have (on average 1.735595390524968) internal successors, (5422), 3131 states have internal predecessors, (5422), 77 states have call successors, (77), 31 states have call predecessors, (77), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-16 09:06:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 5587 transitions. [2024-11-16 09:06:44,605 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 5587 transitions. Word has length 107 [2024-11-16 09:06:44,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:44,606 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 5587 transitions. [2024-11-16 09:06:44,606 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:44,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 5587 transitions. [2024-11-16 09:06:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:44,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:44,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:44,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:06:44,609 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:44,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 243842868, now seen corresponding path program 1 times [2024-11-16 09:06:44,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:44,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594878879] [2024-11-16 09:06:44,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:44,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:44,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:44,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:44,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:44,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:44,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:44,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:44,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:44,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594878879] [2024-11-16 09:06:44,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594878879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:44,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:44,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:44,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744078666] [2024-11-16 09:06:44,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:44,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:44,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:44,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:44,795 INFO L87 Difference]: Start difference. First operand 3237 states and 5587 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:46,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:46,641 INFO L93 Difference]: Finished difference Result 5745 states and 9350 transitions. [2024-11-16 09:06:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:06:46,642 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:46,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:46,663 INFO L225 Difference]: With dead ends: 5745 [2024-11-16 09:06:46,664 INFO L226 Difference]: Without dead ends: 4644 [2024-11-16 09:06:46,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:06:46,672 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4758 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21501 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:46,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21501 Invalid, 1781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:06:46,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2024-11-16 09:06:46,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 4103. [2024-11-16 09:06:46,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4103 states, 3906 states have (on average 1.677931387608807) internal successors, (6554), 3917 states have internal predecessors, (6554), 133 states have call successors, (133), 55 states have call predecessors, (133), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-16 09:06:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4103 states to 4103 states and 6853 transitions. [2024-11-16 09:06:46,923 INFO L78 Accepts]: Start accepts. Automaton has 4103 states and 6853 transitions. Word has length 107 [2024-11-16 09:06:46,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:46,923 INFO L471 AbstractCegarLoop]: Abstraction has 4103 states and 6853 transitions. [2024-11-16 09:06:46,923 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:46,924 INFO L276 IsEmpty]: Start isEmpty. Operand 4103 states and 6853 transitions. [2024-11-16 09:06:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:46,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:46,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:46,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:06:46,928 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:46,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:46,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2098188405, now seen corresponding path program 1 times [2024-11-16 09:06:46,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:46,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350869696] [2024-11-16 09:06:46,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:46,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:47,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:47,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:47,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:47,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:47,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:47,133 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 09:06:47,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:47,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350869696] [2024-11-16 09:06:47,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350869696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:47,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:47,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:47,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145969946] [2024-11-16 09:06:47,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:47,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:47,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:47,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:47,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:47,137 INFO L87 Difference]: Start difference. First operand 4103 states and 6853 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:48,844 INFO L93 Difference]: Finished difference Result 9373 states and 14750 transitions. [2024-11-16 09:06:48,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:06:48,845 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:48,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:48,882 INFO L225 Difference]: With dead ends: 9373 [2024-11-16 09:06:48,886 INFO L226 Difference]: Without dead ends: 7406 [2024-11-16 09:06:48,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:06:48,898 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4967 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4985 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:48,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4985 Valid, 21491 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:06:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7406 states. [2024-11-16 09:06:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7406 to 5826. [2024-11-16 09:06:49,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5469 states have (on average 1.6141890656427136) internal successors, (8828), 5488 states have internal predecessors, (8828), 237 states have call successors, (237), 103 states have call predecessors, (237), 118 states have return successors, (332), 250 states have call predecessors, (332), 235 states have call successors, (332) [2024-11-16 09:06:49,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 9397 transitions. [2024-11-16 09:06:49,151 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 9397 transitions. Word has length 107 [2024-11-16 09:06:49,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:49,152 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 9397 transitions. [2024-11-16 09:06:49,152 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:49,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 9397 transitions. [2024-11-16 09:06:49,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:49,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:49,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:49,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:06:49,159 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:49,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:49,160 INFO L85 PathProgramCache]: Analyzing trace with hash 888946166, now seen corresponding path program 1 times [2024-11-16 09:06:49,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:49,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793287577] [2024-11-16 09:06:49,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:49,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:49,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:49,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:49,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:49,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:49,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:49,328 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 09:06:49,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:49,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793287577] [2024-11-16 09:06:49,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793287577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:49,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:49,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022360421] [2024-11-16 09:06:49,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:49,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:49,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:49,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:49,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:49,333 INFO L87 Difference]: Start difference. First operand 5826 states and 9397 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:50,295 INFO L93 Difference]: Finished difference Result 10455 states and 16406 transitions. [2024-11-16 09:06:50,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:06:50,296 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:50,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:50,321 INFO L225 Difference]: With dead ends: 10455 [2024-11-16 09:06:50,322 INFO L226 Difference]: Without dead ends: 6765 [2024-11-16 09:06:50,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:50,334 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4653 mSDsluCounter, 12374 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4666 SdHoareTripleChecker+Valid, 16533 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:50,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4666 Valid, 16533 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:06:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2024-11-16 09:06:50,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 5826. [2024-11-16 09:06:50,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5469 states have (on average 1.6110806363137684) internal successors, (8811), 5488 states have internal predecessors, (8811), 237 states have call successors, (237), 103 states have call predecessors, (237), 118 states have return successors, (332), 250 states have call predecessors, (332), 235 states have call successors, (332) [2024-11-16 09:06:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 9380 transitions. [2024-11-16 09:06:50,565 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 9380 transitions. Word has length 107 [2024-11-16 09:06:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:50,567 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 9380 transitions. [2024-11-16 09:06:50,567 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 9380 transitions. [2024-11-16 09:06:50,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:50,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:50,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:50,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:06:50,575 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:50,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:50,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2096864341, now seen corresponding path program 1 times [2024-11-16 09:06:50,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:50,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459730496] [2024-11-16 09:06:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:50,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:50,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:50,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:50,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:50,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:50,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:50,739 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 09:06:50,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:50,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459730496] [2024-11-16 09:06:50,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459730496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:50,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:50,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:50,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745849893] [2024-11-16 09:06:50,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:50,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:50,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:50,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:50,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:50,742 INFO L87 Difference]: Start difference. First operand 5826 states and 9380 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:52,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:52,623 INFO L93 Difference]: Finished difference Result 15526 states and 23872 transitions. [2024-11-16 09:06:52,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:06:52,623 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:52,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:52,670 INFO L225 Difference]: With dead ends: 15526 [2024-11-16 09:06:52,670 INFO L226 Difference]: Without dead ends: 11836 [2024-11-16 09:06:52,682 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 09:06:52,683 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4881 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4899 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:52,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4899 Valid, 21491 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:06:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11836 states. [2024-11-16 09:06:53,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11836 to 9278. [2024-11-16 09:06:53,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.552212800557556) internal successors, (13363), 8644 states have internal predecessors, (13363), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:06:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14510 transitions. [2024-11-16 09:06:53,101 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14510 transitions. Word has length 107 [2024-11-16 09:06:53,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:53,101 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14510 transitions. [2024-11-16 09:06:53,102 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:53,102 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14510 transitions. [2024-11-16 09:06:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:53,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:53,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:53,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:06:53,110 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:53,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash 611808790, now seen corresponding path program 1 times [2024-11-16 09:06:53,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:53,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671479874] [2024-11-16 09:06:53,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:53,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:53,275 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 09:06:53,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:53,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671479874] [2024-11-16 09:06:53,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671479874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:53,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:53,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:53,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963711464] [2024-11-16 09:06:53,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:53,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:53,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:53,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:53,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:53,281 INFO L87 Difference]: Start difference. First operand 9278 states and 14510 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:54,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:54,370 INFO L93 Difference]: Finished difference Result 18091 states and 27881 transitions. [2024-11-16 09:06:54,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:06:54,370 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:54,417 INFO L225 Difference]: With dead ends: 18091 [2024-11-16 09:06:54,417 INFO L226 Difference]: Without dead ends: 10949 [2024-11-16 09:06:54,439 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 09:06:54,442 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4652 mSDsluCounter, 12374 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 16533 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:54,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4665 Valid, 16533 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:06:54,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10949 states. [2024-11-16 09:06:55,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10949 to 9278. [2024-11-16 09:06:55,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.5483796027413173) internal successors, (13330), 8644 states have internal predecessors, (13330), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:06:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14477 transitions. [2024-11-16 09:06:55,119 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14477 transitions. Word has length 107 [2024-11-16 09:06:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:55,123 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14477 transitions. [2024-11-16 09:06:55,124 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:55,124 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14477 transitions. [2024-11-16 09:06:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:55,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:55,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:55,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:06:55,136 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:55,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:55,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1395187765, now seen corresponding path program 1 times [2024-11-16 09:06:55,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:55,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36163680] [2024-11-16 09:06:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:55,322 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 09:06:55,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:55,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36163680] [2024-11-16 09:06:55,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36163680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:55,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:55,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:55,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746721603] [2024-11-16 09:06:55,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:55,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:55,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:55,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:55,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:55,325 INFO L87 Difference]: Start difference. First operand 9278 states and 14477 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:56,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:56,677 INFO L93 Difference]: Finished difference Result 18057 states and 27714 transitions. [2024-11-16 09:06:56,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:06:56,678 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:56,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:56,711 INFO L225 Difference]: With dead ends: 18057 [2024-11-16 09:06:56,711 INFO L226 Difference]: Without dead ends: 10915 [2024-11-16 09:06:56,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:56,729 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4566 mSDsluCounter, 16476 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4579 SdHoareTripleChecker+Valid, 20635 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:56,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4579 Valid, 20635 Invalid, 862 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [57 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:06:56,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2024-11-16 09:06:57,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 9278. [2024-11-16 09:06:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.5445464049250783) internal successors, (13297), 8644 states have internal predecessors, (13297), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:06:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14444 transitions. [2024-11-16 09:06:57,166 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14444 transitions. Word has length 107 [2024-11-16 09:06:57,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:57,166 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14444 transitions. [2024-11-16 09:06:57,166 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:57,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14444 transitions. [2024-11-16 09:06:57,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:06:57,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:57,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:57,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:06:57,175 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:57,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:57,175 INFO L85 PathProgramCache]: Analyzing trace with hash 866268726, now seen corresponding path program 1 times [2024-11-16 09:06:57,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:57,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916563416] [2024-11-16 09:06:57,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:57,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:06:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:06:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:06:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:06:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:57,333 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 09:06:57,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:57,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916563416] [2024-11-16 09:06:57,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916563416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:57,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:57,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:57,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579686737] [2024-11-16 09:06:57,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:57,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:57,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:57,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:57,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:57,336 INFO L87 Difference]: Start difference. First operand 9278 states and 14444 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:06:59,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:59,426 INFO L93 Difference]: Finished difference Result 26784 states and 40516 transitions. [2024-11-16 09:06:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:06:59,427 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:06:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:59,492 INFO L225 Difference]: With dead ends: 26784 [2024-11-16 09:06:59,493 INFO L226 Difference]: Without dead ends: 19642 [2024-11-16 09:06:59,516 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 09:06:59,516 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4746 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4764 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:59,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4764 Valid, 21491 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:06:59,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19642 states. [2024-11-16 09:07:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19642 to 16229. [2024-11-16 09:07:00,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16229 states, 14952 states have (on average 1.4991305510968431) internal successors, (22415), 15019 states have internal predecessors, (22415), 821 states have call successors, (821), 391 states have call predecessors, (821), 454 states have return successors, (1612), 882 states have call predecessors, (1612), 819 states have call successors, (1612) [2024-11-16 09:07:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16229 states to 16229 states and 24848 transitions. [2024-11-16 09:07:00,267 INFO L78 Accepts]: Start accepts. Automaton has 16229 states and 24848 transitions. Word has length 107 [2024-11-16 09:07:00,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:00,267 INFO L471 AbstractCegarLoop]: Abstraction has 16229 states and 24848 transitions. [2024-11-16 09:07:00,268 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 16229 states and 24848 transitions. [2024-11-16 09:07:00,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:07:00,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:00,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:07:00,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:07:00,282 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:00,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:00,282 INFO L85 PathProgramCache]: Analyzing trace with hash 295017493, now seen corresponding path program 1 times [2024-11-16 09:07:00,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:00,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031088409] [2024-11-16 09:07:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:00,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:07:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:07:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:07:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:07:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:07:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:00,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031088409] [2024-11-16 09:07:00,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031088409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:00,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:07:00,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:07:00,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205732321] [2024-11-16 09:07:00,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:00,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:07:00,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:07:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:07:00,414 INFO L87 Difference]: Start difference. First operand 16229 states and 24848 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:03,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:03,162 INFO L93 Difference]: Finished difference Result 49386 states and 74125 transitions. [2024-11-16 09:07:03,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:07:03,163 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:07:03,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:03,286 INFO L225 Difference]: With dead ends: 49386 [2024-11-16 09:07:03,286 INFO L226 Difference]: Without dead ends: 35294 [2024-11-16 09:07:03,333 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 09:07:03,335 INFO L432 NwaCegarLoop]: 4367 mSDtfsCounter, 4999 mSDsluCounter, 12701 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 17068 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:07:03,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 17068 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:07:03,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35294 states. [2024-11-16 09:07:04,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35294 to 29535. [2024-11-16 09:07:04,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29535 states, 26989 states have (on average 1.4582237207751305) internal successors, (39356), 27185 states have internal predecessors, (39356), 1636 states have call successors, (1636), 781 states have call predecessors, (1636), 908 states have return successors, (3157), 1632 states have call predecessors, (3157), 1634 states have call successors, (3157) [2024-11-16 09:07:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29535 states to 29535 states and 44149 transitions. [2024-11-16 09:07:04,860 INFO L78 Accepts]: Start accepts. Automaton has 29535 states and 44149 transitions. Word has length 107 [2024-11-16 09:07:04,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:04,861 INFO L471 AbstractCegarLoop]: Abstraction has 29535 states and 44149 transitions. [2024-11-16 09:07:04,861 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:07:04,861 INFO L276 IsEmpty]: Start isEmpty. Operand 29535 states and 44149 transitions. [2024-11-16 09:07:04,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:07:04,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:04,920 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, 1] [2024-11-16 09:07:04,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:07:04,920 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:04,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:04,921 INFO L85 PathProgramCache]: Analyzing trace with hash -777789897, now seen corresponding path program 1 times [2024-11-16 09:07:04,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:04,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412145520] [2024-11-16 09:07:04,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:04,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:04,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:07:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:07:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:07:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:07:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:07:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:07:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:07:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,113 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 09:07:05,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:05,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412145520] [2024-11-16 09:07:05,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412145520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:07:05,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620612595] [2024-11-16 09:07:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:05,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:07:05,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:07:05,117 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 09:07:05,118 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 09:07:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:05,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:07:05,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:07:05,372 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 09:07:05,376 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:07:05,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620612595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:05,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:07:05,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:07:05,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288516450] [2024-11-16 09:07:05,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:05,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:07:05,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:05,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:07:05,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:07:05,378 INFO L87 Difference]: Start difference. First operand 29535 states and 44149 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:07:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:07,504 INFO L93 Difference]: Finished difference Result 83550 states and 124097 transitions. [2024-11-16 09:07:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:07:07,504 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 176 [2024-11-16 09:07:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:07,718 INFO L225 Difference]: With dead ends: 83550 [2024-11-16 09:07:07,718 INFO L226 Difference]: Without dead ends: 56152 [2024-11-16 09:07:07,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 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 09:07:07,795 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 4251 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 4616 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 09:07:07,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 4616 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:07:08,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56152 states. [2024-11-16 09:07:11,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56152 to 55627. [2024-11-16 09:07:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55627 states, 50673 states have (on average 1.4440234444378663) internal successors, (73173), 51062 states have internal predecessors, (73173), 3136 states have call successors, (3136), 1561 states have call predecessors, (3136), 1816 states have return successors, (6117), 3067 states have call predecessors, (6117), 3134 states have call successors, (6117) [2024-11-16 09:07:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55627 states to 55627 states and 82426 transitions. [2024-11-16 09:07:11,344 INFO L78 Accepts]: Start accepts. Automaton has 55627 states and 82426 transitions. Word has length 176 [2024-11-16 09:07:11,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:11,344 INFO L471 AbstractCegarLoop]: Abstraction has 55627 states and 82426 transitions. [2024-11-16 09:07:11,345 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:07:11,345 INFO L276 IsEmpty]: Start isEmpty. Operand 55627 states and 82426 transitions. [2024-11-16 09:07:11,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:07:11,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:11,425 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, 1] [2024-11-16 09:07:11,444 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 09:07:11,629 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 09:07:11,630 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:11,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:11,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1454955663, now seen corresponding path program 1 times [2024-11-16 09:07:11,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:11,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555092836] [2024-11-16 09:07:11,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:11,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:07:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:07:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:07:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:07:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:07:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:07:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:07:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,801 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 09:07:11,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:11,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555092836] [2024-11-16 09:07:11,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555092836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:07:11,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950857990] [2024-11-16 09:07:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:11,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:07:11,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:07:11,804 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 09:07:11,806 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 09:07:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:11,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:07:11,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:07:12,035 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 09:07:12,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:07:12,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950857990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:12,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:07:12,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:07:12,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475983949] [2024-11-16 09:07:12,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:12,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:07:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:07:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:07:12,037 INFO L87 Difference]: Start difference. First operand 55627 states and 82426 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:07:17,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:07:17,231 INFO L93 Difference]: Finished difference Result 161046 states and 238478 transitions. [2024-11-16 09:07:17,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:07:17,231 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 176 [2024-11-16 09:07:17,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:07:17,960 INFO L225 Difference]: With dead ends: 161046 [2024-11-16 09:07:17,960 INFO L226 Difference]: Without dead ends: 107556 [2024-11-16 09:07:18,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 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 09:07:18,068 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 4245 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4245 SdHoareTripleChecker+Valid, 4616 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 09:07:18,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4245 Valid, 4616 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:07:18,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107556 states. [2024-11-16 09:07:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107556 to 106511. [2024-11-16 09:07:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106511 states, 96871 states have (on average 1.4374477397776424) internal successors, (139247), 97646 states have internal predecessors, (139247), 6006 states have call successors, (6006), 3121 states have call predecessors, (6006), 3632 states have return successors, (11907), 5807 states have call predecessors, (11907), 6004 states have call successors, (11907) [2024-11-16 09:07:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106511 states to 106511 states and 157160 transitions. [2024-11-16 09:07:24,208 INFO L78 Accepts]: Start accepts. Automaton has 106511 states and 157160 transitions. Word has length 176 [2024-11-16 09:07:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:07:24,209 INFO L471 AbstractCegarLoop]: Abstraction has 106511 states and 157160 transitions. [2024-11-16 09:07:24,209 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:07:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 106511 states and 157160 transitions. [2024-11-16 09:07:24,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:07:24,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:07:24,342 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, 1] [2024-11-16 09:07:24,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:07:24,543 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 09:07:24,543 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:07:24,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:07:24,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1188209621, now seen corresponding path program 1 times [2024-11-16 09:07:24,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:07:24,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928738065] [2024-11-16 09:07:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:24,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:07:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:07:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:07:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:07:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:07:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:07:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:07:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:07:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:07:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,727 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 09:07:24,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:07:24,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928738065] [2024-11-16 09:07:24,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928738065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:07:24,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781415553] [2024-11-16 09:07:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:07:24,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:07:24,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:07:24,730 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 09:07:24,731 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 09:07:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:07:24,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:07:24,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:07:24,959 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 09:07:24,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:07:24,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781415553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:07:24,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:07:24,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:07:24,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78083220] [2024-11-16 09:07:24,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:07:24,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:07:24,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:07:24,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:07:24,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:07:24,963 INFO L87 Difference]: Start difference. First operand 106511 states and 157160 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)