./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.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_label43+token_ring.03.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 d5e8784cabcb38b73600d610d5b7e0bbbbf790f527b046ae80f9a34c4ea82403 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:08:11,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:08:11,711 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:08:11,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:08:11,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:08:11,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:08:11,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:08:11,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:08:11,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:08:11,749 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:08:11,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:08:11,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:08:11,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:08:11,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:08:11,750 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:08:11,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:08:11,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:08:11,751 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:08:11,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:08:11,751 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:08:11,751 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:08:11,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:08:11,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:08:11,753 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:08:11,753 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:08:11,753 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:08:11,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:08:11,754 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:08:11,754 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:08:11,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:08:11,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:08:11,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:08:11,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:08:11,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:08:11,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:08:11,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:08:11,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:08:11,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:08:11,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:08:11,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:08:11,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:08:11,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:08:11,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5e8784cabcb38b73600d610d5b7e0bbbbf790f527b046ae80f9a34c4ea82403 [2024-11-16 09:08:12,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:08:12,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:08:12,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:08:12,076 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:08:12,077 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:08:12,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c [2024-11-16 09:08:13,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:08:14,128 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:08:14,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c [2024-11-16 09:08:14,186 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c5046bec/0b85e36c8f554066808209c1b4baac3d/FLAGe5d89dcfa [2024-11-16 09:08:14,202 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c5046bec/0b85e36c8f554066808209c1b4baac3d [2024-11-16 09:08:14,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:08:14,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:08:14,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:08:14,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:08:14,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:08:14,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:08:14" (1/1) ... [2024-11-16 09:08:14,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a4b84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:14, skipping insertion in model container [2024-11-16 09:08:14,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:08:14" (1/1) ... [2024-11-16 09:08:14,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:08:15,865 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_label43+token_ring.03.cil-1.c[381679,381692] [2024-11-16 09:08:15,916 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_label43+token_ring.03.cil-1.c[383339,383352] [2024-11-16 09:08:16,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:08:16,096 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:08:16,829 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_label43+token_ring.03.cil-1.c[381679,381692] [2024-11-16 09:08:16,833 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_label43+token_ring.03.cil-1.c[383339,383352] [2024-11-16 09:08:16,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:08:16,911 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:08:16,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16 WrapperNode [2024-11-16 09:08:16,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:08:16,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:08:16,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:08:16,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:08:16,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,427 INFO L138 Inliner]: procedures = 50, calls = 51, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12692 [2024-11-16 09:08:17,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:08:17,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:08:17,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:08:17,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:08:17,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,674 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 09:08:17,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,928 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:17,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:18,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:08:18,043 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:08:18,043 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:08:18,043 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:08:18,045 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (1/1) ... [2024-11-16 09:08:18,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:08:18,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:18,081 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 09:08:18,084 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 09:08:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:08:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:08:18,169 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:08:18,169 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:08:18,170 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:08:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:08:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:08:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:08:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:08:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:08:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:08:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:08:18,174 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:08:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:08:18,174 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:08:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:08:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:08:18,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:08:18,329 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:08:18,332 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:08:25,643 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:08:25,644 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:08:25,644 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:08:25,644 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:08:25,644 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:08:25,644 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:08:25,645 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:08:25,911 INFO L? ?]: Removed 1705 outVars from TransFormulas that were not future-live. [2024-11-16 09:08:25,911 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:08:25,968 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:08:25,969 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:08:25,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:08:25 BoogieIcfgContainer [2024-11-16 09:08:25,970 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:08:25,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:08:25,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:08:25,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:08:25,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:08:14" (1/3) ... [2024-11-16 09:08:25,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18592e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:08:25, skipping insertion in model container [2024-11-16 09:08:25,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:16" (2/3) ... [2024-11-16 09:08:25,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18592e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:08:25, skipping insertion in model container [2024-11-16 09:08:25,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:08:25" (3/3) ... [2024-11-16 09:08:25,980 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.03.cil-1.c [2024-11-16 09:08:25,996 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:08:25,996 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:08:26,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:08:26,134 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;@4c08698a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:08:26,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:08:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 2379 states, 2350 states have (on average 1.8446808510638297) internal successors, (4335), 2355 states have internal predecessors, (4335), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-16 09:08:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:08:26,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:26,169 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] [2024-11-16 09:08:26,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:26,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:26,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2110898959, now seen corresponding path program 1 times [2024-11-16 09:08:26,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:26,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128784657] [2024-11-16 09:08:26,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:26,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:26,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:26,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:26,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:26,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:26,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:08:26,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:26,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128784657] [2024-11-16 09:08:26,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128784657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:26,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:26,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:08:26,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097912185] [2024-11-16 09:08:26,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:26,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:08:26,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:26,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:08:26,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:08:26,818 INFO L87 Difference]: Start difference. First operand has 2379 states, 2350 states have (on average 1.8446808510638297) internal successors, (4335), 2355 states have internal predecessors, (4335), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:28,081 INFO L93 Difference]: Finished difference Result 5000 states and 9133 transitions. [2024-11-16 09:08:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:08:28,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-16 09:08:28,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:28,119 INFO L225 Difference]: With dead ends: 5000 [2024-11-16 09:08:28,120 INFO L226 Difference]: Without dead ends: 2560 [2024-11-16 09:08:28,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:08:28,136 INFO L432 NwaCegarLoop]: 4198 mSDtfsCounter, 4596 mSDsluCounter, 12603 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4606 SdHoareTripleChecker+Valid, 16801 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:28,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4606 Valid, 16801 Invalid, 842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:08:28,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2024-11-16 09:08:28,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2472. [2024-11-16 09:08:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 2426 states have (on average 1.8145094806265458) internal successors, (4402), 2430 states have internal predecessors, (4402), 31 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-16 09:08:28,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 4465 transitions. [2024-11-16 09:08:28,303 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 4465 transitions. Word has length 85 [2024-11-16 09:08:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:28,304 INFO L471 AbstractCegarLoop]: Abstraction has 2472 states and 4465 transitions. [2024-11-16 09:08:28,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 4465 transitions. [2024-11-16 09:08:28,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:08:28,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:28,308 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] [2024-11-16 09:08:28,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:08:28,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:28,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:28,309 INFO L85 PathProgramCache]: Analyzing trace with hash -556453295, now seen corresponding path program 1 times [2024-11-16 09:08:28,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:28,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19665092] [2024-11-16 09:08:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:28,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:28,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:28,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:28,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:28,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:28,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:08:28,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:28,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19665092] [2024-11-16 09:08:28,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19665092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:28,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:28,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:28,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118048845] [2024-11-16 09:08:28,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:28,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:28,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:28,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:28,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:28,525 INFO L87 Difference]: Start difference. First operand 2472 states and 4465 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:29,262 INFO L93 Difference]: Finished difference Result 2899 states and 5105 transitions. [2024-11-16 09:08:29,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:08:29,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-16 09:08:29,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:29,278 INFO L225 Difference]: With dead ends: 2899 [2024-11-16 09:08:29,278 INFO L226 Difference]: Without dead ends: 2561 [2024-11-16 09:08:29,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:08:29,283 INFO L432 NwaCegarLoop]: 4112 mSDtfsCounter, 4394 mSDsluCounter, 16318 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4405 SdHoareTripleChecker+Valid, 20430 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:29,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4405 Valid, 20430 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:08:29,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2024-11-16 09:08:29,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2472. [2024-11-16 09:08:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 2426 states have (on average 1.8136850783182192) internal successors, (4400), 2430 states have internal predecessors, (4400), 31 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-16 09:08:29,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 4463 transitions. [2024-11-16 09:08:29,359 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 4463 transitions. Word has length 85 [2024-11-16 09:08:29,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:29,360 INFO L471 AbstractCegarLoop]: Abstraction has 2472 states and 4463 transitions. [2024-11-16 09:08:29,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 4463 transitions. [2024-11-16 09:08:29,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:08:29,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:29,362 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] [2024-11-16 09:08:29,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:08:29,363 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:29,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash 397775600, now seen corresponding path program 1 times [2024-11-16 09:08:29,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:29,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416217905] [2024-11-16 09:08:29,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:29,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:29,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:29,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:29,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:29,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:29,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:08:29,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:29,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416217905] [2024-11-16 09:08:29,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416217905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:29,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:29,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:29,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337773286] [2024-11-16 09:08:29,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:29,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:29,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:29,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:29,579 INFO L87 Difference]: Start difference. First operand 2472 states and 4463 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:30,853 INFO L93 Difference]: Finished difference Result 3107 states and 5400 transitions. [2024-11-16 09:08:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:08:30,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-16 09:08:30,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:30,867 INFO L225 Difference]: With dead ends: 3107 [2024-11-16 09:08:30,867 INFO L226 Difference]: Without dead ends: 2769 [2024-11-16 09:08:30,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:08:30,873 INFO L432 NwaCegarLoop]: 4252 mSDtfsCounter, 4526 mSDsluCounter, 16835 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4536 SdHoareTripleChecker+Valid, 21087 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:30,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4536 Valid, 21087 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:08:30,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2024-11-16 09:08:31,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2632. [2024-11-16 09:08:31,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2632 states, 2567 states have (on average 1.7923646279703935) internal successors, (4601), 2572 states have internal predecessors, (4601), 43 states have call successors, (43), 19 states have call predecessors, (43), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-11-16 09:08:31,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2632 states to 2632 states and 4690 transitions. [2024-11-16 09:08:31,041 INFO L78 Accepts]: Start accepts. Automaton has 2632 states and 4690 transitions. Word has length 85 [2024-11-16 09:08:31,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:31,042 INFO L471 AbstractCegarLoop]: Abstraction has 2632 states and 4690 transitions. [2024-11-16 09:08:31,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2632 states and 4690 transitions. [2024-11-16 09:08:31,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:08:31,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:31,044 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] [2024-11-16 09:08:31,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:08:31,044 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:31,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:31,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1272737969, now seen corresponding path program 1 times [2024-11-16 09:08:31,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:31,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853366542] [2024-11-16 09:08:31,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:31,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:31,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:31,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:31,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:31,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:31,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:08:31,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:31,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853366542] [2024-11-16 09:08:31,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853366542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:31,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:31,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:31,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931643138] [2024-11-16 09:08:31,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:31,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:31,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:31,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:31,201 INFO L87 Difference]: Start difference. First operand 2632 states and 4690 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:32,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:32,602 INFO L93 Difference]: Finished difference Result 3765 states and 6355 transitions. [2024-11-16 09:08:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:08:32,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-16 09:08:32,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:32,617 INFO L225 Difference]: With dead ends: 3765 [2024-11-16 09:08:32,618 INFO L226 Difference]: Without dead ends: 3267 [2024-11-16 09:08:32,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:08:32,622 INFO L432 NwaCegarLoop]: 4248 mSDtfsCounter, 4656 mSDsluCounter, 16827 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4670 SdHoareTripleChecker+Valid, 21075 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:32,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4670 Valid, 21075 Invalid, 1233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:08:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2024-11-16 09:08:32,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 2949. [2024-11-16 09:08:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2848 states have (on average 1.7570224719101124) internal successors, (5004), 2855 states have internal predecessors, (5004), 65 states have call successors, (65), 31 states have call predecessors, (65), 34 states have return successors, (76), 66 states have call predecessors, (76), 63 states have call successors, (76) [2024-11-16 09:08:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 5145 transitions. [2024-11-16 09:08:32,755 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 5145 transitions. Word has length 85 [2024-11-16 09:08:32,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:32,756 INFO L471 AbstractCegarLoop]: Abstraction has 2949 states and 5145 transitions. [2024-11-16 09:08:32,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 5145 transitions. [2024-11-16 09:08:32,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:08:32,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:32,759 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] [2024-11-16 09:08:32,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:08:32,759 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:32,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:32,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1880814832, now seen corresponding path program 1 times [2024-11-16 09:08:32,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:32,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742606934] [2024-11-16 09:08:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:32,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:32,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:32,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:32,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:32,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:32,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:32,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:08:32,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:32,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742606934] [2024-11-16 09:08:32,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742606934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:32,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:32,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:32,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374868074] [2024-11-16 09:08:32,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:32,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:32,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:32,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:32,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:32,936 INFO L87 Difference]: Start difference. First operand 2949 states and 5145 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:33,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:33,561 INFO L93 Difference]: Finished difference Result 3961 states and 6638 transitions. [2024-11-16 09:08:33,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:08:33,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-16 09:08:33,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:33,573 INFO L225 Difference]: With dead ends: 3961 [2024-11-16 09:08:33,573 INFO L226 Difference]: Without dead ends: 3146 [2024-11-16 09:08:33,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:08:33,576 INFO L432 NwaCegarLoop]: 4111 mSDtfsCounter, 4452 mSDsluCounter, 12248 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 16359 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:33,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 16359 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:08:33,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2024-11-16 09:08:33,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 2949. [2024-11-16 09:08:33,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2848 states have (on average 1.7552668539325842) internal successors, (4999), 2855 states have internal predecessors, (4999), 65 states have call successors, (65), 31 states have call predecessors, (65), 34 states have return successors, (76), 66 states have call predecessors, (76), 63 states have call successors, (76) [2024-11-16 09:08:33,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 5140 transitions. [2024-11-16 09:08:33,707 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 5140 transitions. Word has length 85 [2024-11-16 09:08:33,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:33,708 INFO L471 AbstractCegarLoop]: Abstraction has 2949 states and 5140 transitions. [2024-11-16 09:08:33,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:33,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 5140 transitions. [2024-11-16 09:08:33,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:08:33,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:33,712 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] [2024-11-16 09:08:33,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:08:33,713 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:33,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:33,714 INFO L85 PathProgramCache]: Analyzing trace with hash -99314897, now seen corresponding path program 1 times [2024-11-16 09:08:33,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:33,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512015591] [2024-11-16 09:08:33,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:33,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:33,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:33,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:33,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:33,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:33,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:08:33,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:33,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512015591] [2024-11-16 09:08:33,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512015591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:33,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:33,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:33,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336128747] [2024-11-16 09:08:33,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:33,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:33,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:33,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:33,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:33,903 INFO L87 Difference]: Start difference. First operand 2949 states and 5140 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:35,046 INFO L93 Difference]: Finished difference Result 4834 states and 7874 transitions. [2024-11-16 09:08:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:08:35,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-16 09:08:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:35,062 INFO L225 Difference]: With dead ends: 4834 [2024-11-16 09:08:35,062 INFO L226 Difference]: Without dead ends: 4019 [2024-11-16 09:08:35,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:08:35,068 INFO L432 NwaCegarLoop]: 4248 mSDtfsCounter, 4570 mSDsluCounter, 16827 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4584 SdHoareTripleChecker+Valid, 21075 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:35,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4584 Valid, 21075 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:08:35,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4019 states. [2024-11-16 09:08:35,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4019 to 3585. [2024-11-16 09:08:35,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3585 states, 3414 states have (on average 1.700937316930287) internal successors, (5807), 3425 states have internal predecessors, (5807), 107 states have call successors, (107), 55 states have call predecessors, (107), 62 states have return successors, (140), 112 states have call predecessors, (140), 105 states have call successors, (140) [2024-11-16 09:08:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 6054 transitions. [2024-11-16 09:08:35,209 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 6054 transitions. Word has length 85 [2024-11-16 09:08:35,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:35,209 INFO L471 AbstractCegarLoop]: Abstraction has 3585 states and 6054 transitions. [2024-11-16 09:08:35,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:35,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 6054 transitions. [2024-11-16 09:08:35,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:08:35,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:35,212 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] [2024-11-16 09:08:35,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:08:35,212 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:35,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:35,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1205078832, now seen corresponding path program 1 times [2024-11-16 09:08:35,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:35,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648847472] [2024-11-16 09:08:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:35,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:35,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:35,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:35,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:35,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:35,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:08:35,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:35,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648847472] [2024-11-16 09:08:35,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648847472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:35,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:35,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:08:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522650313] [2024-11-16 09:08:35,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:35,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:08:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:35,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:08:35,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:08:35,336 INFO L87 Difference]: Start difference. First operand 3585 states and 6054 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:35,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:35,829 INFO L93 Difference]: Finished difference Result 5341 states and 8619 transitions. [2024-11-16 09:08:35,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:08:35,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-16 09:08:35,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:35,856 INFO L225 Difference]: With dead ends: 5341 [2024-11-16 09:08:35,856 INFO L226 Difference]: Without dead ends: 3890 [2024-11-16 09:08:35,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:08:35,864 INFO L432 NwaCegarLoop]: 4111 mSDtfsCounter, 4448 mSDsluCounter, 12248 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 16359 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:35,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4459 Valid, 16359 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 09:08:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2024-11-16 09:08:35,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 3585. [2024-11-16 09:08:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3585 states, 3414 states have (on average 1.6983011130638548) internal successors, (5798), 3425 states have internal predecessors, (5798), 107 states have call successors, (107), 55 states have call predecessors, (107), 62 states have return successors, (140), 112 states have call predecessors, (140), 105 states have call successors, (140) [2024-11-16 09:08:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 6045 transitions. [2024-11-16 09:08:35,990 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 6045 transitions. Word has length 85 [2024-11-16 09:08:35,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:35,991 INFO L471 AbstractCegarLoop]: Abstraction has 3585 states and 6045 transitions. [2024-11-16 09:08:35,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 6045 transitions. [2024-11-16 09:08:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:08:35,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:35,993 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] [2024-11-16 09:08:35,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:08:35,994 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:35,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:35,994 INFO L85 PathProgramCache]: Analyzing trace with hash -969601265, now seen corresponding path program 1 times [2024-11-16 09:08:35,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:35,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7849984] [2024-11-16 09:08:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:35,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:36,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:36,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:36,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:36,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:36,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:36,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:08:36,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:36,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7849984] [2024-11-16 09:08:36,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7849984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:36,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:08:36,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:08:36,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153258436] [2024-11-16 09:08:36,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:36,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:08:36,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:36,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:08:36,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:08:36,096 INFO L87 Difference]: Start difference. First operand 3585 states and 6045 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:37,042 INFO L93 Difference]: Finished difference Result 6950 states and 10880 transitions. [2024-11-16 09:08:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:08:37,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-16 09:08:37,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:37,064 INFO L225 Difference]: With dead ends: 6950 [2024-11-16 09:08:37,064 INFO L226 Difference]: Without dead ends: 5500 [2024-11-16 09:08:37,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:08:37,072 INFO L432 NwaCegarLoop]: 4266 mSDtfsCounter, 4699 mSDsluCounter, 12481 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4727 SdHoareTripleChecker+Valid, 16747 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:37,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4727 Valid, 16747 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:08:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5500 states. [2024-11-16 09:08:37,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5500 to 4921. [2024-11-16 09:08:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4921 states, 4587 states have (on average 1.6163069544364508) internal successors, (7414), 4615 states have internal predecessors, (7414), 208 states have call successors, (208), 109 states have call predecessors, (208), 124 states have return successors, (269), 204 states have call predecessors, (269), 206 states have call successors, (269) [2024-11-16 09:08:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4921 states to 4921 states and 7891 transitions. [2024-11-16 09:08:37,338 INFO L78 Accepts]: Start accepts. Automaton has 4921 states and 7891 transitions. Word has length 85 [2024-11-16 09:08:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:37,339 INFO L471 AbstractCegarLoop]: Abstraction has 4921 states and 7891 transitions. [2024-11-16 09:08:37,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:08:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand 4921 states and 7891 transitions. [2024-11-16 09:08:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:08:37,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:37,348 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:37,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:08:37,348 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:37,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:37,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1973125464, now seen corresponding path program 1 times [2024-11-16 09:08:37,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:37,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334049816] [2024-11-16 09:08:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:37,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:08:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:08:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,531 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:08:37,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:37,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334049816] [2024-11-16 09:08:37,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334049816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:08:37,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568926547] [2024-11-16 09:08:37,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:37,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:37,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:37,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:08:37,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:08:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:37,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:08:37,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:08:37,755 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 09:08:37,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:08:37,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568926547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:37,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:08:37,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:08:37,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966722846] [2024-11-16 09:08:37,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:37,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:08:37,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:37,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:08:37,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:37,758 INFO L87 Difference]: Start difference. First operand 4921 states and 7891 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:08:38,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:38,053 INFO L93 Difference]: Finished difference Result 10384 states and 15639 transitions. [2024-11-16 09:08:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:08:38,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 140 [2024-11-16 09:08:38,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:38,079 INFO L225 Difference]: With dead ends: 10384 [2024-11-16 09:08:38,079 INFO L226 Difference]: Without dead ends: 7598 [2024-11-16 09:08:38,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:38,094 INFO L432 NwaCegarLoop]: 4255 mSDtfsCounter, 4168 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:38,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 4484 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:08:38,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7598 states. [2024-11-16 09:08:38,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7598 to 7521. [2024-11-16 09:08:38,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7521 states, 6879 states have (on average 1.5463003343509232) internal successors, (10637), 6932 states have internal predecessors, (10637), 392 states have call successors, (392), 217 states have call predecessors, (392), 248 states have return successors, (509), 379 states have call predecessors, (509), 390 states have call successors, (509) [2024-11-16 09:08:38,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7521 states to 7521 states and 11538 transitions. [2024-11-16 09:08:38,438 INFO L78 Accepts]: Start accepts. Automaton has 7521 states and 11538 transitions. Word has length 140 [2024-11-16 09:08:38,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:38,438 INFO L471 AbstractCegarLoop]: Abstraction has 7521 states and 11538 transitions. [2024-11-16 09:08:38,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:08:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7521 states and 11538 transitions. [2024-11-16 09:08:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:08:38,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:38,449 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:38,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:08:38,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:38,654 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:38,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2047340050, now seen corresponding path program 1 times [2024-11-16 09:08:38,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:38,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938955085] [2024-11-16 09:08:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:38,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:08:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:08:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,811 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:08:38,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:38,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938955085] [2024-11-16 09:08:38,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938955085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:08:38,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326569725] [2024-11-16 09:08:38,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:38,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:38,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:38,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:08:38,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:08:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:38,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:08:38,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:08:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:08:39,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:08:39,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326569725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:39,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:08:39,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:08:39,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898257689] [2024-11-16 09:08:39,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:39,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:08:39,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:39,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:08:39,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:39,022 INFO L87 Difference]: Start difference. First operand 7521 states and 11538 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:08:39,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:39,533 INFO L93 Difference]: Finished difference Result 18124 states and 26574 transitions. [2024-11-16 09:08:39,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:08:39,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 140 [2024-11-16 09:08:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:39,579 INFO L225 Difference]: With dead ends: 18124 [2024-11-16 09:08:39,579 INFO L226 Difference]: Without dead ends: 12738 [2024-11-16 09:08:39,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:39,600 INFO L432 NwaCegarLoop]: 4213 mSDtfsCounter, 4162 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 4442 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:39,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 4442 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:08:39,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12738 states. [2024-11-16 09:08:40,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12738 to 12589. [2024-11-16 09:08:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12589 states, 11333 states have (on average 1.4911320921203566) internal successors, (16899), 11436 states have internal predecessors, (16899), 758 states have call successors, (758), 433 states have call predecessors, (758), 496 states have return successors, (987), 727 states have call predecessors, (987), 756 states have call successors, (987) [2024-11-16 09:08:40,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12589 states to 12589 states and 18644 transitions. [2024-11-16 09:08:40,341 INFO L78 Accepts]: Start accepts. Automaton has 12589 states and 18644 transitions. Word has length 140 [2024-11-16 09:08:40,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:40,342 INFO L471 AbstractCegarLoop]: Abstraction has 12589 states and 18644 transitions. [2024-11-16 09:08:40,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:08:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 12589 states and 18644 transitions. [2024-11-16 09:08:40,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:08:40,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:40,359 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:40,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:08:40,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 09:08:40,564 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:40,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1333072308, now seen corresponding path program 1 times [2024-11-16 09:08:40,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033078788] [2024-11-16 09:08:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:08:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:08:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:08:40,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033078788] [2024-11-16 09:08:40,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033078788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:08:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868614613] [2024-11-16 09:08:40,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:40,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:40,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:40,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:08:40,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:08:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:40,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:08:40,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:08:40,944 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:08:40,945 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:08:40,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868614613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:40,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:08:40,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:08:40,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950310092] [2024-11-16 09:08:40,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:40,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:08:40,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:40,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:08:40,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:40,948 INFO L87 Difference]: Start difference. First operand 12589 states and 18644 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:08:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:42,091 INFO L93 Difference]: Finished difference Result 33160 states and 47798 transitions. [2024-11-16 09:08:42,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:08:42,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 140 [2024-11-16 09:08:42,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:42,156 INFO L225 Difference]: With dead ends: 33160 [2024-11-16 09:08:42,157 INFO L226 Difference]: Without dead ends: 22706 [2024-11-16 09:08:42,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:42,188 INFO L432 NwaCegarLoop]: 4255 mSDtfsCounter, 4174 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4174 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:42,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4174 Valid, 4484 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:08:42,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22706 states. [2024-11-16 09:08:43,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22706 to 22413. [2024-11-16 09:08:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22413 states, 19949 states have (on average 1.4548598927264524) internal successors, (29023), 20152 states have internal predecessors, (29023), 1470 states have call successors, (1470), 865 states have call predecessors, (1470), 992 states have return successors, (1923), 1403 states have call predecessors, (1923), 1468 states have call successors, (1923) [2024-11-16 09:08:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22413 states to 22413 states and 32416 transitions. [2024-11-16 09:08:43,382 INFO L78 Accepts]: Start accepts. Automaton has 22413 states and 32416 transitions. Word has length 140 [2024-11-16 09:08:43,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:43,383 INFO L471 AbstractCegarLoop]: Abstraction has 22413 states and 32416 transitions. [2024-11-16 09:08:43,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:08:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand 22413 states and 32416 transitions. [2024-11-16 09:08:43,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 09:08:43,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:43,403 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:43,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:08:43,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:43,605 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:43,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1144874886, now seen corresponding path program 1 times [2024-11-16 09:08:43,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:43,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370070420] [2024-11-16 09:08:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:43,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:08:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:08:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,739 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:08:43,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:43,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370070420] [2024-11-16 09:08:43,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370070420] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:08:43,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585558864] [2024-11-16 09:08:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:43,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:43,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:43,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:08:43,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:08:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:43,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:08:43,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:08:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 09:08:43,900 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:08:43,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585558864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:43,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:08:43,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:08:43,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194016564] [2024-11-16 09:08:43,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:43,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:08:43,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:43,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:08:43,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:43,905 INFO L87 Difference]: Start difference. First operand 22413 states and 32416 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:08:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:45,396 INFO L93 Difference]: Finished difference Result 60983 states and 87361 transitions. [2024-11-16 09:08:45,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:08:45,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 140 [2024-11-16 09:08:45,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:45,555 INFO L225 Difference]: With dead ends: 60983 [2024-11-16 09:08:45,555 INFO L226 Difference]: Without dead ends: 40706 [2024-11-16 09:08:45,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:45,616 INFO L432 NwaCegarLoop]: 4425 mSDtfsCounter, 205 mSDsluCounter, 4211 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 8636 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:45,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 8636 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:08:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40706 states. [2024-11-16 09:08:48,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40706 to 40706. [2024-11-16 09:08:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40706 states, 36003 states have (on average 1.4269921950948532) internal successors, (51376), 36335 states have internal predecessors, (51376), 2755 states have call successors, (2755), 1691 states have call predecessors, (2755), 1946 states have return successors, (4082), 2695 states have call predecessors, (4082), 2753 states have call successors, (4082) [2024-11-16 09:08:48,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40706 states to 40706 states and 58213 transitions. [2024-11-16 09:08:48,224 INFO L78 Accepts]: Start accepts. Automaton has 40706 states and 58213 transitions. Word has length 140 [2024-11-16 09:08:48,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:48,226 INFO L471 AbstractCegarLoop]: Abstraction has 40706 states and 58213 transitions. [2024-11-16 09:08:48,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:08:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 40706 states and 58213 transitions. [2024-11-16 09:08:48,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 09:08:48,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:48,316 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:48,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 09:08:48,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:48,521 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:48,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:48,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1891621488, now seen corresponding path program 1 times [2024-11-16 09:08:48,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:48,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259103747] [2024-11-16 09:08:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:48,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:08:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:08:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:08:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:08:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-16 09:08:48,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:48,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259103747] [2024-11-16 09:08:48,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259103747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:08:48,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084475518] [2024-11-16 09:08:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:48,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:48,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:48,844 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:08:48,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:08:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:48,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:08:48,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:08:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 09:08:49,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:08:49,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084475518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:49,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:08:49,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:08:49,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54675341] [2024-11-16 09:08:49,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:49,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:08:49,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:49,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:08:49,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:49,115 INFO L87 Difference]: Start difference. First operand 40706 states and 58213 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:08:50,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:50,863 INFO L93 Difference]: Finished difference Result 67469 states and 96559 transitions. [2024-11-16 09:08:50,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:08:50,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 205 [2024-11-16 09:08:50,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:51,028 INFO L225 Difference]: With dead ends: 67469 [2024-11-16 09:08:51,028 INFO L226 Difference]: Without dead ends: 36982 [2024-11-16 09:08:51,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:51,113 INFO L432 NwaCegarLoop]: 4210 mSDtfsCounter, 4130 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4130 SdHoareTripleChecker+Valid, 4254 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:51,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4130 Valid, 4254 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:08:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36982 states. [2024-11-16 09:08:52,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36982 to 28090. [2024-11-16 09:08:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28090 states, 24963 states have (on average 1.4041581540680206) internal successors, (35052), 25139 states have internal predecessors, (35052), 1811 states have call successors, (1811), 1187 states have call predecessors, (1811), 1314 states have return successors, (2418), 1771 states have call predecessors, (2418), 1809 states have call successors, (2418) [2024-11-16 09:08:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28090 states to 28090 states and 39281 transitions. [2024-11-16 09:08:52,835 INFO L78 Accepts]: Start accepts. Automaton has 28090 states and 39281 transitions. Word has length 205 [2024-11-16 09:08:52,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:52,835 INFO L471 AbstractCegarLoop]: Abstraction has 28090 states and 39281 transitions. [2024-11-16 09:08:52,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:08:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 28090 states and 39281 transitions. [2024-11-16 09:08:52,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 09:08:52,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:52,872 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:52,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 09:08:53,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 09:08:53,074 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:53,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:53,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1229828974, now seen corresponding path program 1 times [2024-11-16 09:08:53,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:53,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559073975] [2024-11-16 09:08:53,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:08:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:08:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:08:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:08:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 09:08:53,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:53,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559073975] [2024-11-16 09:08:53,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559073975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:08:53,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262631680] [2024-11-16 09:08:53,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:53,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:53,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:53,227 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:08:53,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 09:08:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:53,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:08:53,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:08:53,397 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-16 09:08:53,397 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:08:53,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262631680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:53,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:08:53,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:08:53,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674936156] [2024-11-16 09:08:53,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:53,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:08:53,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:53,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:08:53,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:53,400 INFO L87 Difference]: Start difference. First operand 28090 states and 39281 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:08:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:55,356 INFO L93 Difference]: Finished difference Result 56671 states and 78669 transitions. [2024-11-16 09:08:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:08:55,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 205 [2024-11-16 09:08:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:55,464 INFO L225 Difference]: With dead ends: 56671 [2024-11-16 09:08:55,465 INFO L226 Difference]: Without dead ends: 30724 [2024-11-16 09:08:55,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:55,520 INFO L432 NwaCegarLoop]: 4217 mSDtfsCounter, 4188 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4188 SdHoareTripleChecker+Valid, 4260 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:55,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4188 Valid, 4260 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:08:55,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30724 states. [2024-11-16 09:08:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30724 to 30724. [2024-11-16 09:08:57,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30724 states, 27393 states have (on average 1.3740006571021794) internal successors, (37638), 27569 states have internal predecessors, (37638), 1869 states have call successors, (1869), 1333 states have call predecessors, (1869), 1460 states have return successors, (2476), 1829 states have call predecessors, (2476), 1867 states have call successors, (2476) [2024-11-16 09:08:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30724 states to 30724 states and 41983 transitions. [2024-11-16 09:08:57,363 INFO L78 Accepts]: Start accepts. Automaton has 30724 states and 41983 transitions. Word has length 205 [2024-11-16 09:08:57,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:08:57,364 INFO L471 AbstractCegarLoop]: Abstraction has 30724 states and 41983 transitions. [2024-11-16 09:08:57,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:08:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 30724 states and 41983 transitions. [2024-11-16 09:08:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 09:08:57,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:08:57,410 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:08:57,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 09:08:57,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:57,611 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:08:57,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:08:57,612 INFO L85 PathProgramCache]: Analyzing trace with hash 872483818, now seen corresponding path program 1 times [2024-11-16 09:08:57,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:08:57,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038481606] [2024-11-16 09:08:57,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:57,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:08:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:08:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:08:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:08:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:08:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:08:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:08:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:08:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:08:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:08:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:08:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 09:08:57,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:08:57,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038481606] [2024-11-16 09:08:57,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038481606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:08:57,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546811006] [2024-11-16 09:08:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:08:57,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:08:57,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:57,801 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:08:57,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 09:08:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:08:57,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 09:08:57,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:08:58,011 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-16 09:08:58,012 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:08:58,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546811006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:08:58,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:08:58,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:08:58,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49384681] [2024-11-16 09:08:58,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:08:58,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:08:58,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:08:58,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:08:58,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:58,015 INFO L87 Difference]: Start difference. First operand 30724 states and 41983 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:08:59,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:08:59,761 INFO L93 Difference]: Finished difference Result 55026 states and 74125 transitions. [2024-11-16 09:08:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:08:59,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 205 [2024-11-16 09:08:59,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:08:59,868 INFO L225 Difference]: With dead ends: 55026 [2024-11-16 09:08:59,868 INFO L226 Difference]: Without dead ends: 32568 [2024-11-16 09:08:59,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:08:59,908 INFO L432 NwaCegarLoop]: 4271 mSDtfsCounter, 4126 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:08:59,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4126 Valid, 4507 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:08:59,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32568 states. [2024-11-16 09:09:01,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32568 to 30460. [2024-11-16 09:09:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30460 states, 27129 states have (on average 1.361421357219212) internal successors, (36934), 27305 states have internal predecessors, (36934), 1869 states have call successors, (1869), 1333 states have call predecessors, (1869), 1460 states have return successors, (2476), 1829 states have call predecessors, (2476), 1867 states have call successors, (2476) [2024-11-16 09:09:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30460 states to 30460 states and 41279 transitions. [2024-11-16 09:09:02,185 INFO L78 Accepts]: Start accepts. Automaton has 30460 states and 41279 transitions. Word has length 205 [2024-11-16 09:09:02,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:02,186 INFO L471 AbstractCegarLoop]: Abstraction has 30460 states and 41279 transitions. [2024-11-16 09:09:02,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:09:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand 30460 states and 41279 transitions. [2024-11-16 09:09:02,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 09:09:02,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:02,223 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:09:02,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 09:09:02,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:09:02,424 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:02,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:02,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1053556149, now seen corresponding path program 1 times [2024-11-16 09:09:02,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:02,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165006778] [2024-11-16 09:09:02,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:02,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:09:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:09:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:09:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:09:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:09:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:09:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:09:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-16 09:09:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:09:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-16 09:09:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 09:09:02,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:02,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165006778] [2024-11-16 09:09:02,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165006778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:09:02,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452618899] [2024-11-16 09:09:02,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:02,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:09:02,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:09:02,585 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:09:02,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 09:09:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:09:02,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:09:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:09:02,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:09:02,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452618899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:02,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:09:02,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:09:02,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859130215] [2024-11-16 09:09:02,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:02,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:09:02,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:02,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:09:02,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:09:02,748 INFO L87 Difference]: Start difference. First operand 30460 states and 41279 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:09:05,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:05,382 INFO L93 Difference]: Finished difference Result 85710 states and 115189 transitions. [2024-11-16 09:09:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:09:05,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 206 [2024-11-16 09:09:05,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:05,611 INFO L225 Difference]: With dead ends: 85710 [2024-11-16 09:09:05,611 INFO L226 Difference]: Without dead ends: 57393 [2024-11-16 09:09:05,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:09:05,680 INFO L432 NwaCegarLoop]: 4431 mSDtfsCounter, 214 mSDsluCounter, 4206 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 8637 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:05,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 8637 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:09:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57393 states. [2024-11-16 09:09:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57393 to 57388. [2024-11-16 09:09:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57388 states, 50843 states have (on average 1.3356410912023287) internal successors, (67908), 51193 states have internal predecessors, (67908), 3651 states have call successors, (3651), 2637 states have call predecessors, (3651), 2892 states have return successors, (5820), 3573 states have call predecessors, (5820), 3649 states have call successors, (5820) [2024-11-16 09:09:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57388 states to 57388 states and 77379 transitions. [2024-11-16 09:09:09,277 INFO L78 Accepts]: Start accepts. Automaton has 57388 states and 77379 transitions. Word has length 206 [2024-11-16 09:09:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:09,278 INFO L471 AbstractCegarLoop]: Abstraction has 57388 states and 77379 transitions. [2024-11-16 09:09:09,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:09:09,278 INFO L276 IsEmpty]: Start isEmpty. Operand 57388 states and 77379 transitions. [2024-11-16 09:09:09,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 09:09:09,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:09,335 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:09:09,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-16 09:09:09,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 09:09:09,535 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:09,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:09,536 INFO L85 PathProgramCache]: Analyzing trace with hash -203999028, now seen corresponding path program 1 times [2024-11-16 09:09:09,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:09,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097599635] [2024-11-16 09:09:09,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:09,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:09:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:09:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:09:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:09:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:09:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:09:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:09:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 09:09:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:09:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-16 09:09:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 09:09:09,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:09,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097599635] [2024-11-16 09:09:09,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097599635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:09:09,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189450680] [2024-11-16 09:09:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:09,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:09:09,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:09:09,668 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:09:09,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 09:09:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:09,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:09:09,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:09:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 09:09:09,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:09:09,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189450680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:09,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:09:09,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:09:09,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675084782] [2024-11-16 09:09:09,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:09,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:09:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:09,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:09:09,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:09:09,927 INFO L87 Difference]: Start difference. First operand 57388 states and 77379 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)