./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b4c883892095e0f755900dfa24a6bc793b8370cf6ff9d1a6368a9f789f01f5b0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:12:32,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:12:32,941 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:12:32,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:12:32,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:12:32,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:12:32,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:12:32,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:12:32,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:12:32,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:12:32,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:12:32,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:12:32,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:12:32,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:12:32,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:12:32,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:12:32,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:12:32,979 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:12:32,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:12:32,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:12:32,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:12:32,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:12:32,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:12:32,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:12:32,983 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:12:32,984 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:12:32,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:12:32,984 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:12:32,984 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:12:32,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:12:32,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:12:32,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:12:32,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:12:32,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:12:32,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:12:32,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:12:32,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:12:32,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:12:32,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:12:32,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:12:32,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:12:32,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:12:32,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4c883892095e0f755900dfa24a6bc793b8370cf6ff9d1a6368a9f789f01f5b0 [2024-11-16 09:12:33,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:12:33,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:12:33,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:12:33,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:12:33,322 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:12:33,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-1.c [2024-11-16 09:12:34,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:12:35,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:12:35,429 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.07.cil-1.c [2024-11-16 09:12:35,485 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72886c7b/a97bca242b2b47759efe1d3721cb390a/FLAG8b1f6c699 [2024-11-16 09:12:35,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72886c7b/a97bca242b2b47759efe1d3721cb390a [2024-11-16 09:12:35,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:12:35,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:12:35,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:12:35,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:12:35,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:12:35,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:12:35" (1/1) ... [2024-11-16 09:12:35,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128fa4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:35, skipping insertion in model container [2024-11-16 09:12:35,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:12:35" (1/1) ... [2024-11-16 09:12:35,996 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:12:37,853 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_label45+token_ring.07.cil-1.c[380323,380336] [2024-11-16 09:12:37,897 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_label45+token_ring.07.cil-1.c[383339,383352] [2024-11-16 09:12:38,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:12:38,123 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:12:38,861 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_label45+token_ring.07.cil-1.c[380323,380336] [2024-11-16 09:12:38,865 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_label45+token_ring.07.cil-1.c[383339,383352] [2024-11-16 09:12:38,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:12:38,996 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:12:38,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38 WrapperNode [2024-11-16 09:12:38,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:12:38,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:12:39,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:12:39,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:12:39,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,386 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12922 [2024-11-16 09:12:39,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:12:39,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:12:39,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:12:39,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:12:39,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,728 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 09:12:39,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,852 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:39,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:40,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:12:40,046 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:12:40,046 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:12:40,046 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:12:40,047 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (1/1) ... [2024-11-16 09:12:40,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:12:40,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:12:40,077 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 09:12:40,079 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 09:12:40,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:12:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:12:40,120 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:12:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:12:40,121 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:12:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:12:40,122 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:12:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:12:40,122 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:12:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:12:40,122 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:12:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:12:40,122 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:12:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:12:40,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:12:40,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:12:40,251 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:12:40,254 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:12:47,519 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:12:47,522 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:12:47,523 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:12:47,523 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:12:47,523 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:12:47,523 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:12:47,524 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:12:47,778 INFO L? ?]: Removed 1725 outVars from TransFormulas that were not future-live. [2024-11-16 09:12:47,778 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:12:47,840 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:12:47,841 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:12:47,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:12:47 BoogieIcfgContainer [2024-11-16 09:12:47,841 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:12:47,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:12:47,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:12:47,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:12:47,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:12:35" (1/3) ... [2024-11-16 09:12:47,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279a96db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:12:47, skipping insertion in model container [2024-11-16 09:12:47,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:12:38" (2/3) ... [2024-11-16 09:12:47,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279a96db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:12:47, skipping insertion in model container [2024-11-16 09:12:47,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:12:47" (3/3) ... [2024-11-16 09:12:47,852 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.07.cil-1.c [2024-11-16 09:12:47,867 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:12:47,868 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:12:47,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:12:47,997 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;@3409ef68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:12:47,997 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:12:48,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 2491 states, 2461 states have (on average 1.832182039821211) internal successors, (4509), 2464 states have internal predecessors, (4509), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:12:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:12:48,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:12:48,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:12:48,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:12:48,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:12:48,046 INFO L85 PathProgramCache]: Analyzing trace with hash 555329377, now seen corresponding path program 1 times [2024-11-16 09:12:48,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:12:48,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291254538] [2024-11-16 09:12:48,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:12:48,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:12:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:48,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:12:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:48,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:12:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:48,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:12:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:48,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:12:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:48,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:12:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:48,829 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 09:12:48,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:12:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291254538] [2024-11-16 09:12:48,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291254538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:12:48,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:12:48,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:12:48,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298845988] [2024-11-16 09:12:48,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:12:48,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:12:48,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:12:48,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:12:48,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:12:48,873 INFO L87 Difference]: Start difference. First operand has 2491 states, 2461 states have (on average 1.832182039821211) internal successors, (4509), 2464 states have internal predecessors, (4509), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:12:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:12:50,455 INFO L93 Difference]: Finished difference Result 5058 states and 9247 transitions. [2024-11-16 09:12:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:12:50,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:12:50,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:12:50,490 INFO L225 Difference]: With dead ends: 5058 [2024-11-16 09:12:50,490 INFO L226 Difference]: Without dead ends: 2516 [2024-11-16 09:12:50,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:12:50,508 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4886 mSDsluCounter, 12682 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4901 SdHoareTripleChecker+Valid, 16948 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:12:50,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4901 Valid, 16948 Invalid, 1157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:12:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-16 09:12:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2413. [2024-11-16 09:12:50,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 2384 states have (on average 1.8225671140939597) internal successors, (4345), 2386 states have internal predecessors, (4345), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:12:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 4387 transitions. [2024-11-16 09:12:50,664 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 4387 transitions. Word has length 128 [2024-11-16 09:12:50,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:12:50,665 INFO L471 AbstractCegarLoop]: Abstraction has 2413 states and 4387 transitions. [2024-11-16 09:12:50,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:12:50,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 4387 transitions. [2024-11-16 09:12:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:12:50,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:12:50,669 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:12:50,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:12:50,670 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:12:50,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:12:50,670 INFO L85 PathProgramCache]: Analyzing trace with hash 36037090, now seen corresponding path program 1 times [2024-11-16 09:12:50,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:12:50,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758905865] [2024-11-16 09:12:50,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:12:50,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:12:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:50,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:12:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:50,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:12:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:50,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:12:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:50,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:12:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:50,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:12:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:50,959 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 09:12:50,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:12:50,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758905865] [2024-11-16 09:12:50,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758905865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:12:50,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:12:50,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:12:50,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617925026] [2024-11-16 09:12:50,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:12:50,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:12:50,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:12:50,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:12:50,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:12:50,966 INFO L87 Difference]: Start difference. First operand 2413 states and 4387 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:12:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:12:53,667 INFO L93 Difference]: Finished difference Result 3158 states and 5536 transitions. [2024-11-16 09:12:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:12:53,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:12:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:12:53,682 INFO L225 Difference]: With dead ends: 3158 [2024-11-16 09:12:53,682 INFO L226 Difference]: Without dead ends: 2883 [2024-11-16 09:12:53,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:12:53,686 INFO L432 NwaCegarLoop]: 4409 mSDtfsCounter, 4935 mSDsluCounter, 17419 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 21828 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:12:53,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 21828 Invalid, 2396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 09:12:53,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2024-11-16 09:12:53,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2699. [2024-11-16 09:12:53,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2699 states, 2644 states have (on average 1.7897125567322238) internal successors, (4732), 2648 states have internal predecessors, (4732), 39 states have call successors, (39), 12 states have call predecessors, (39), 14 states have return successors, (46), 40 states have call predecessors, (46), 39 states have call successors, (46) [2024-11-16 09:12:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 4817 transitions. [2024-11-16 09:12:53,808 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 4817 transitions. Word has length 128 [2024-11-16 09:12:53,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:12:53,810 INFO L471 AbstractCegarLoop]: Abstraction has 2699 states and 4817 transitions. [2024-11-16 09:12:53,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:12:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 4817 transitions. [2024-11-16 09:12:53,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:12:53,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:12:53,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:12:53,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:12:53,819 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:12:53,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:12:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash -950545599, now seen corresponding path program 1 times [2024-11-16 09:12:53,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:12:53,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314909890] [2024-11-16 09:12:53,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:12:53,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:12:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:53,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:12:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:53,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:12:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:54,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:12:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:54,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:12:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:54,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:12:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:54,099 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 09:12:54,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:12:54,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314909890] [2024-11-16 09:12:54,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314909890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:12:54,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:12:54,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:12:54,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647679164] [2024-11-16 09:12:54,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:12:54,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:12:54,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:12:54,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:12:54,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:12:54,103 INFO L87 Difference]: Start difference. First operand 2699 states and 4817 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:12:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:12:56,704 INFO L93 Difference]: Finished difference Result 4121 states and 6988 transitions. [2024-11-16 09:12:56,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:12:56,705 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:12:56,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:12:56,724 INFO L225 Difference]: With dead ends: 4121 [2024-11-16 09:12:56,724 INFO L226 Difference]: Without dead ends: 3562 [2024-11-16 09:12:56,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:12:56,733 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4939 mSDsluCounter, 17349 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 21714 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:12:56,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 21714 Invalid, 2282 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:12:56,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2024-11-16 09:12:56,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3232. [2024-11-16 09:12:56,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 3131 states have (on average 1.7384222293197062) internal successors, (5443), 3137 states have internal predecessors, (5443), 71 states have call successors, (71), 24 states have call predecessors, (71), 28 states have return successors, (88), 74 states have call predecessors, (88), 71 states have call successors, (88) [2024-11-16 09:12:56,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 5602 transitions. [2024-11-16 09:12:56,857 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 5602 transitions. Word has length 128 [2024-11-16 09:12:56,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:12:56,857 INFO L471 AbstractCegarLoop]: Abstraction has 3232 states and 5602 transitions. [2024-11-16 09:12:56,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:12:56,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 5602 transitions. [2024-11-16 09:12:56,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:12:56,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:12:56,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:12:56,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:12:56,863 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:12:56,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:12:56,863 INFO L85 PathProgramCache]: Analyzing trace with hash 126007810, now seen corresponding path program 1 times [2024-11-16 09:12:56,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:12:56,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273342480] [2024-11-16 09:12:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:12:56,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:12:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:56,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:12:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:56,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:12:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:57,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:12:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:57,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:12:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:57,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:12:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:57,065 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 09:12:57,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:12:57,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273342480] [2024-11-16 09:12:57,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273342480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:12:57,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:12:57,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:12:57,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553372367] [2024-11-16 09:12:57,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:12:57,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:12:57,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:12:57,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:12:57,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:12:57,068 INFO L87 Difference]: Start difference. First operand 3232 states and 5602 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:12:59,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:12:59,033 INFO L93 Difference]: Finished difference Result 6010 states and 9829 transitions. [2024-11-16 09:12:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:12:59,034 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:12:59,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:12:59,054 INFO L225 Difference]: With dead ends: 6010 [2024-11-16 09:12:59,054 INFO L226 Difference]: Without dead ends: 4918 [2024-11-16 09:12:59,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:12:59,061 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4939 mSDsluCounter, 17349 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 21714 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:12:59,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 21714 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:12:59,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4918 states. [2024-11-16 09:12:59,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4918 to 4301. [2024-11-16 09:12:59,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4108 states have (on average 1.6721032132424538) internal successors, (6869), 4118 states have internal predecessors, (6869), 135 states have call successors, (135), 48 states have call predecessors, (135), 56 states have return successors, (178), 142 states have call predecessors, (178), 135 states have call successors, (178) [2024-11-16 09:12:59,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 7182 transitions. [2024-11-16 09:12:59,242 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 7182 transitions. Word has length 128 [2024-11-16 09:12:59,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:12:59,242 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 7182 transitions. [2024-11-16 09:12:59,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:12:59,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 7182 transitions. [2024-11-16 09:12:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:12:59,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:12:59,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:12:59,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:12:59,249 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:12:59,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:12:59,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1961850657, now seen corresponding path program 1 times [2024-11-16 09:12:59,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:12:59,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470716325] [2024-11-16 09:12:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:12:59,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:12:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:12:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:12:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:12:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:12:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:12:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:12:59,493 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 09:12:59,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:12:59,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470716325] [2024-11-16 09:12:59,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470716325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:12:59,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:12:59,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:12:59,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320909474] [2024-11-16 09:12:59,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:12:59,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:12:59,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:12:59,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:12:59,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:12:59,496 INFO L87 Difference]: Start difference. First operand 4301 states and 7182 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:01,613 INFO L93 Difference]: Finished difference Result 9787 states and 15527 transitions. [2024-11-16 09:13:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:13:01,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:01,649 INFO L225 Difference]: With dead ends: 9787 [2024-11-16 09:13:01,649 INFO L226 Difference]: Without dead ends: 7626 [2024-11-16 09:13:01,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:13:01,661 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4939 mSDsluCounter, 17349 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 21714 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:01,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 21714 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:13:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7626 states. [2024-11-16 09:13:01,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7626 to 6446. [2024-11-16 09:13:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6446 states, 6069 states have (on average 1.603394298896029) internal successors, (9731), 6087 states have internal predecessors, (9731), 263 states have call successors, (263), 96 states have call predecessors, (263), 112 states have return successors, (376), 278 states have call predecessors, (376), 263 states have call successors, (376) [2024-11-16 09:13:01,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6446 states to 6446 states and 10370 transitions. [2024-11-16 09:13:01,935 INFO L78 Accepts]: Start accepts. Automaton has 6446 states and 10370 transitions. Word has length 128 [2024-11-16 09:13:01,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:01,935 INFO L471 AbstractCegarLoop]: Abstraction has 6446 states and 10370 transitions. [2024-11-16 09:13:01,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:01,940 INFO L276 IsEmpty]: Start isEmpty. Operand 6446 states and 10370 transitions. [2024-11-16 09:13:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:01,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:01,949 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:01,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:13:01,949 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:01,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:01,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2021071394, now seen corresponding path program 1 times [2024-11-16 09:13:01,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:01,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169321687] [2024-11-16 09:13:01,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:01,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:02,153 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 09:13:02,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:02,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169321687] [2024-11-16 09:13:02,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169321687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:02,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:02,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:02,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143483693] [2024-11-16 09:13:02,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:02,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:02,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:02,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:02,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:02,157 INFO L87 Difference]: Start difference. First operand 6446 states and 10370 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:04,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:04,350 INFO L93 Difference]: Finished difference Result 17340 states and 26981 transitions. [2024-11-16 09:13:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:13:04,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:04,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:04,422 INFO L225 Difference]: With dead ends: 17340 [2024-11-16 09:13:04,422 INFO L226 Difference]: Without dead ends: 13034 [2024-11-16 09:13:04,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:13:04,445 INFO L432 NwaCegarLoop]: 4365 mSDtfsCounter, 4939 mSDsluCounter, 17349 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 21714 SdHoareTripleChecker+Invalid, 2255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:04,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 21714 Invalid, 2255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:13:04,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13034 states. [2024-11-16 09:13:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13034 to 10751. [2024-11-16 09:13:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10006 states have (on average 1.5467719368378972) internal successors, (15477), 10040 states have internal predecessors, (15477), 519 states have call successors, (519), 192 states have call predecessors, (519), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:13:05,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 16822 transitions. [2024-11-16 09:13:05,112 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 16822 transitions. Word has length 128 [2024-11-16 09:13:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:05,114 INFO L471 AbstractCegarLoop]: Abstraction has 10751 states and 16822 transitions. [2024-11-16 09:13:05,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:05,114 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 16822 transitions. [2024-11-16 09:13:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:05,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:05,123 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:05,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:13:05,124 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:05,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:05,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1579248895, now seen corresponding path program 1 times [2024-11-16 09:13:05,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:05,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665314425] [2024-11-16 09:13:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:05,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:05,341 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 09:13:05,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:05,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665314425] [2024-11-16 09:13:05,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665314425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:05,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:05,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:05,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714374583] [2024-11-16 09:13:05,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:05,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:05,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:05,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:05,345 INFO L87 Difference]: Start difference. First operand 10751 states and 16822 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:06,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:06,774 INFO L93 Difference]: Finished difference Result 21772 states and 33891 transitions. [2024-11-16 09:13:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:06,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:06,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:06,826 INFO L225 Difference]: With dead ends: 21772 [2024-11-16 09:13:06,826 INFO L226 Difference]: Without dead ends: 13159 [2024-11-16 09:13:06,859 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 09:13:06,860 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4827 mSDsluCounter, 12478 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 16675 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:06,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4842 Valid, 16675 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:13:06,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13159 states. [2024-11-16 09:13:07,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13159 to 10751. [2024-11-16 09:13:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10006 states have (on average 1.5434739156506097) internal successors, (15444), 10040 states have internal predecessors, (15444), 519 states have call successors, (519), 192 states have call predecessors, (519), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:13:07,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 16789 transitions. [2024-11-16 09:13:07,346 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 16789 transitions. Word has length 128 [2024-11-16 09:13:07,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:07,346 INFO L471 AbstractCegarLoop]: Abstraction has 10751 states and 16789 transitions. [2024-11-16 09:13:07,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:07,347 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 16789 transitions. [2024-11-16 09:13:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:07,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:07,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:07,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:13:07,359 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:07,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:07,360 INFO L85 PathProgramCache]: Analyzing trace with hash -448462270, now seen corresponding path program 1 times [2024-11-16 09:13:07,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:07,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62509755] [2024-11-16 09:13:07,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:07,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:07,619 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 09:13:07,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:07,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62509755] [2024-11-16 09:13:07,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62509755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:07,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:07,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:07,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693233011] [2024-11-16 09:13:07,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:07,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:07,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:07,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:07,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:07,622 INFO L87 Difference]: Start difference. First operand 10751 states and 16789 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:08,858 INFO L93 Difference]: Finished difference Result 21708 states and 33666 transitions. [2024-11-16 09:13:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:08,905 INFO L225 Difference]: With dead ends: 21708 [2024-11-16 09:13:08,906 INFO L226 Difference]: Without dead ends: 13095 [2024-11-16 09:13:08,938 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 09:13:08,939 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4821 mSDsluCounter, 12476 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 16673 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:08,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4836 Valid, 16673 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:13:08,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13095 states. [2024-11-16 09:13:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13095 to 10751. [2024-11-16 09:13:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10006 states have (on average 1.540175894463322) internal successors, (15411), 10040 states have internal predecessors, (15411), 519 states have call successors, (519), 192 states have call predecessors, (519), 224 states have return successors, (826), 550 states have call predecessors, (826), 519 states have call successors, (826) [2024-11-16 09:13:09,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 16756 transitions. [2024-11-16 09:13:09,413 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 16756 transitions. Word has length 128 [2024-11-16 09:13:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:09,415 INFO L471 AbstractCegarLoop]: Abstraction has 10751 states and 16756 transitions. [2024-11-16 09:13:09,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 16756 transitions. [2024-11-16 09:13:09,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:09,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:09,424 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:09,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:13:09,425 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:09,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:09,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1045450179, now seen corresponding path program 1 times [2024-11-16 09:13:09,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:09,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85372767] [2024-11-16 09:13:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:09,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:09,691 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 09:13:09,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:09,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85372767] [2024-11-16 09:13:09,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85372767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:09,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:09,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:09,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874618999] [2024-11-16 09:13:09,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:09,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:09,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:09,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:09,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:09,694 INFO L87 Difference]: Start difference. First operand 10751 states and 16756 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:12,318 INFO L93 Difference]: Finished difference Result 34973 states and 53601 transitions. [2024-11-16 09:13:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:13:12,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:12,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:12,402 INFO L225 Difference]: With dead ends: 34973 [2024-11-16 09:13:12,403 INFO L226 Difference]: Without dead ends: 26362 [2024-11-16 09:13:12,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:13:12,430 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5166 mSDsluCounter, 17372 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5188 SdHoareTripleChecker+Valid, 21760 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:12,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5188 Valid, 21760 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2144 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:13:12,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26362 states. [2024-11-16 09:13:13,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26362 to 19391. [2024-11-16 09:13:13,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19391 states, 17942 states have (on average 1.5019507301304202) internal successors, (26948), 18008 states have internal predecessors, (26948), 999 states have call successors, (999), 384 states have call predecessors, (999), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:13:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19391 states to 19391 states and 29803 transitions. [2024-11-16 09:13:13,501 INFO L78 Accepts]: Start accepts. Automaton has 19391 states and 29803 transitions. Word has length 128 [2024-11-16 09:13:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:13,502 INFO L471 AbstractCegarLoop]: Abstraction has 19391 states and 29803 transitions. [2024-11-16 09:13:13,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 19391 states and 29803 transitions. [2024-11-16 09:13:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:13,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:13,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:13,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:13:13,523 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:13,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:13,523 INFO L85 PathProgramCache]: Analyzing trace with hash -153285086, now seen corresponding path program 1 times [2024-11-16 09:13:13,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:13,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168620391] [2024-11-16 09:13:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:13,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:13,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:13,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:13,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:13,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:13,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:13,721 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 09:13:13,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:13,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168620391] [2024-11-16 09:13:13,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168620391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:13,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:13,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:13,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704405189] [2024-11-16 09:13:13,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:13,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:13,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:13,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:13,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:13,724 INFO L87 Difference]: Start difference. First operand 19391 states and 29803 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:15,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:15,633 INFO L93 Difference]: Finished difference Result 41036 states and 63380 transitions. [2024-11-16 09:13:15,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:15,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:15,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:15,836 INFO L225 Difference]: With dead ends: 41036 [2024-11-16 09:13:15,837 INFO L226 Difference]: Without dead ends: 23783 [2024-11-16 09:13:15,866 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 09:13:15,867 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4820 mSDsluCounter, 12476 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 16673 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:15,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 16673 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:13:15,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23783 states. [2024-11-16 09:13:16,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23783 to 19391. [2024-11-16 09:13:16,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19391 states, 17942 states have (on average 1.498327945602497) internal successors, (26883), 18008 states have internal predecessors, (26883), 999 states have call successors, (999), 384 states have call predecessors, (999), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:13:16,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19391 states to 19391 states and 29738 transitions. [2024-11-16 09:13:16,630 INFO L78 Accepts]: Start accepts. Automaton has 19391 states and 29738 transitions. Word has length 128 [2024-11-16 09:13:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:16,631 INFO L471 AbstractCegarLoop]: Abstraction has 19391 states and 29738 transitions. [2024-11-16 09:13:16,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 19391 states and 29738 transitions. [2024-11-16 09:13:16,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:16,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:16,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:16,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:13:16,646 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:16,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:16,647 INFO L85 PathProgramCache]: Analyzing trace with hash 362235363, now seen corresponding path program 1 times [2024-11-16 09:13:16,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:16,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565566113] [2024-11-16 09:13:16,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:16,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:16,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:16,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:16,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:16,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:16,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:16,811 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 09:13:16,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:16,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565566113] [2024-11-16 09:13:16,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565566113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:16,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:16,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:16,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047315612] [2024-11-16 09:13:16,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:16,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:16,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:16,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:16,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:16,814 INFO L87 Difference]: Start difference. First operand 19391 states and 29738 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:18,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:18,688 INFO L93 Difference]: Finished difference Result 40972 states and 63058 transitions. [2024-11-16 09:13:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:18,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:18,762 INFO L225 Difference]: With dead ends: 40972 [2024-11-16 09:13:18,762 INFO L226 Difference]: Without dead ends: 23719 [2024-11-16 09:13:18,803 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 09:13:18,803 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4818 mSDsluCounter, 12476 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 16673 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:18,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4833 Valid, 16673 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:13:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23719 states. [2024-11-16 09:13:19,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23719 to 19391. [2024-11-16 09:13:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19391 states, 17942 states have (on average 1.4947051610745736) internal successors, (26818), 18008 states have internal predecessors, (26818), 999 states have call successors, (999), 384 states have call predecessors, (999), 448 states have return successors, (1856), 1062 states have call predecessors, (1856), 999 states have call successors, (1856) [2024-11-16 09:13:19,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19391 states to 19391 states and 29673 transitions. [2024-11-16 09:13:19,798 INFO L78 Accepts]: Start accepts. Automaton has 19391 states and 29673 transitions. Word has length 128 [2024-11-16 09:13:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:19,799 INFO L471 AbstractCegarLoop]: Abstraction has 19391 states and 29673 transitions. [2024-11-16 09:13:19,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 19391 states and 29673 transitions. [2024-11-16 09:13:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:19,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:19,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:19,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:13:19,815 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:19,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:19,815 INFO L85 PathProgramCache]: Analyzing trace with hash -590966270, now seen corresponding path program 1 times [2024-11-16 09:13:19,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:19,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427111291] [2024-11-16 09:13:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:19,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:19,996 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 09:13:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:19,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427111291] [2024-11-16 09:13:19,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427111291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:19,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:19,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:19,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709690306] [2024-11-16 09:13:19,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:19,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:19,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:19,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:19,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:19,999 INFO L87 Difference]: Start difference. First operand 19391 states and 29673 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:24,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:24,066 INFO L93 Difference]: Finished difference Result 64701 states and 98792 transitions. [2024-11-16 09:13:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:13:24,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:24,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:24,358 INFO L225 Difference]: With dead ends: 64701 [2024-11-16 09:13:24,358 INFO L226 Difference]: Without dead ends: 47450 [2024-11-16 09:13:24,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:13:24,397 INFO L432 NwaCegarLoop]: 4366 mSDtfsCounter, 5046 mSDsluCounter, 17344 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5068 SdHoareTripleChecker+Valid, 21710 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:24,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5068 Valid, 21710 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:13:24,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47450 states. [2024-11-16 09:13:25,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47450 to 36767. [2024-11-16 09:13:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36767 states, 33942 states have (on average 1.470862058806199) internal successors, (49924), 34072 states have internal predecessors, (49924), 1927 states have call successors, (1927), 768 states have call predecessors, (1927), 896 states have return successors, (4370), 2054 states have call predecessors, (4370), 1927 states have call successors, (4370) [2024-11-16 09:13:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36767 states to 36767 states and 56221 transitions. [2024-11-16 09:13:26,340 INFO L78 Accepts]: Start accepts. Automaton has 36767 states and 56221 transitions. Word has length 128 [2024-11-16 09:13:26,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:26,341 INFO L471 AbstractCegarLoop]: Abstraction has 36767 states and 56221 transitions. [2024-11-16 09:13:26,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 36767 states and 56221 transitions. [2024-11-16 09:13:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:26,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:26,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:26,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:13:26,377 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:26,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:26,377 INFO L85 PathProgramCache]: Analyzing trace with hash 209569283, now seen corresponding path program 1 times [2024-11-16 09:13:26,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:26,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493061780] [2024-11-16 09:13:26,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:26,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:26,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:26,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:26,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:26,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:26,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:26,530 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 09:13:26,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:26,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493061780] [2024-11-16 09:13:26,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493061780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:26,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:26,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:26,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864892379] [2024-11-16 09:13:26,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:26,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:26,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:26,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:26,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:26,532 INFO L87 Difference]: Start difference. First operand 36767 states and 56221 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:29,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:29,616 INFO L93 Difference]: Finished difference Result 79436 states and 123082 transitions. [2024-11-16 09:13:29,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:13:29,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:29,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:29,761 INFO L225 Difference]: With dead ends: 79436 [2024-11-16 09:13:29,761 INFO L226 Difference]: Without dead ends: 44807 [2024-11-16 09:13:29,825 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 09:13:29,826 INFO L432 NwaCegarLoop]: 4197 mSDtfsCounter, 4712 mSDsluCounter, 16604 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4727 SdHoareTripleChecker+Valid, 20801 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:29,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4727 Valid, 20801 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:13:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44807 states. [2024-11-16 09:13:31,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44807 to 36767. [2024-11-16 09:13:31,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36767 states, 33942 states have (on average 1.4670614577809205) internal successors, (49795), 34072 states have internal predecessors, (49795), 1927 states have call successors, (1927), 768 states have call predecessors, (1927), 896 states have return successors, (4370), 2054 states have call predecessors, (4370), 1927 states have call successors, (4370) [2024-11-16 09:13:32,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36767 states to 36767 states and 56092 transitions. [2024-11-16 09:13:32,094 INFO L78 Accepts]: Start accepts. Automaton has 36767 states and 56092 transitions. Word has length 128 [2024-11-16 09:13:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:32,095 INFO L471 AbstractCegarLoop]: Abstraction has 36767 states and 56092 transitions. [2024-11-16 09:13:32,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 36767 states and 56092 transitions. [2024-11-16 09:13:32,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:32,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:32,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:32,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:13:32,135 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:32,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:32,136 INFO L85 PathProgramCache]: Analyzing trace with hash -318796318, now seen corresponding path program 1 times [2024-11-16 09:13:32,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:32,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986909544] [2024-11-16 09:13:32,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:32,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:32,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:32,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:32,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:32,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:32,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:32,353 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 09:13:32,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:32,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986909544] [2024-11-16 09:13:32,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986909544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:32,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:32,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:13:32,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773826097] [2024-11-16 09:13:32,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:32,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:13:32,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:32,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:13:32,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:13:32,356 INFO L87 Difference]: Start difference. First operand 36767 states and 56092 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:38,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:13:38,844 INFO L93 Difference]: Finished difference Result 123101 states and 189364 transitions. [2024-11-16 09:13:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:13:38,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 128 [2024-11-16 09:13:38,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:13:39,125 INFO L225 Difference]: With dead ends: 123101 [2024-11-16 09:13:39,125 INFO L226 Difference]: Without dead ends: 88474 [2024-11-16 09:13:39,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:13:39,214 INFO L432 NwaCegarLoop]: 4366 mSDtfsCounter, 4962 mSDsluCounter, 17344 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 21710 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:13:39,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 21710 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:13:39,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88474 states. [2024-11-16 09:13:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88474 to 71583. [2024-11-16 09:13:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71583 states, 66070 states have (on average 1.4540790071136673) internal successors, (96071), 66328 states have internal predecessors, (96071), 3719 states have call successors, (3719), 1536 states have call predecessors, (3719), 1792 states have return successors, (10792), 3974 states have call predecessors, (10792), 3719 states have call successors, (10792) [2024-11-16 09:13:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71583 states to 71583 states and 110582 transitions. [2024-11-16 09:13:43,856 INFO L78 Accepts]: Start accepts. Automaton has 71583 states and 110582 transitions. Word has length 128 [2024-11-16 09:13:43,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:13:43,857 INFO L471 AbstractCegarLoop]: Abstraction has 71583 states and 110582 transitions. [2024-11-16 09:13:43,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:13:43,857 INFO L276 IsEmpty]: Start isEmpty. Operand 71583 states and 110582 transitions. [2024-11-16 09:13:43,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 09:13:43,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:13:43,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:13:43,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:13:43,892 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:13:43,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:13:43,893 INFO L85 PathProgramCache]: Analyzing trace with hash 356896291, now seen corresponding path program 1 times [2024-11-16 09:13:43,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:13:43,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163141356] [2024-11-16 09:13:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:13:43,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:13:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:43,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:13:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:43,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:13:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:44,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 09:13:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:44,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:13:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:44,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:13:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:13:44,038 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 09:13:44,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:13:44,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163141356] [2024-11-16 09:13:44,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163141356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:13:44,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:13:44,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:13:44,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613650952] [2024-11-16 09:13:44,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:13:44,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:13:44,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:13:44,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:13:44,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:13:44,039 INFO L87 Difference]: Start difference. First operand 71583 states and 110582 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)