./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbdff9d5cdb7ffcae57151b3d045900600728670d8aad942a459f8d05b6221fb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:56:00,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:56:00,260 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:56:00,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:56:00,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:56:00,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:56:00,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:56:00,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:56:00,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:56:00,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:56:00,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:56:00,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:56:00,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:56:00,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:56:00,291 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:56:00,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:56:00,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:56:00,291 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:56:00,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:56:00,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:56:00,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:56:00,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:56:00,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:56:00,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:56:00,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:56:00,293 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:56:00,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:56:00,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:56:00,294 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:56:00,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:56:00,294 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:56:00,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:56:00,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:56:00,295 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:56:00,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:56:00,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:56:00,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:56:00,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:56:00,296 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:56:00,296 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:56:00,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:56:00,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:56:00,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdff9d5cdb7ffcae57151b3d045900600728670d8aad942a459f8d05b6221fb [2024-11-16 09:56:00,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:56:00,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:56:00,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:56:00,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:56:00,512 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:56:00,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2024-11-16 09:56:01,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:56:01,946 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:56:01,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2024-11-16 09:56:01,968 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0278e721/ce7e8696448246f9bdad45eeadcaa925/FLAG1a0e278a5 [2024-11-16 09:56:01,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0278e721/ce7e8696448246f9bdad45eeadcaa925 [2024-11-16 09:56:01,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:56:01,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:56:01,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:56:01,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:56:01,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:56:01,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:56:01" (1/1) ... [2024-11-16 09:56:01,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357f988d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:01, skipping insertion in model container [2024-11-16 09:56:01,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:56:01" (1/1) ... [2024-11-16 09:56:02,077 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:56:02,196 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/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[914,927] [2024-11-16 09:56:02,234 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/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[7115,7128] [2024-11-16 09:56:02,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:56:02,298 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:56:02,309 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/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[914,927] [2024-11-16 09:56:02,329 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/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[7115,7128] [2024-11-16 09:56:02,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:56:02,412 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:56:02,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02 WrapperNode [2024-11-16 09:56:02,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:56:02,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:56:02,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:56:02,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:56:02,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,458 INFO L138 Inliner]: procedures = 73, calls = 87, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 931 [2024-11-16 09:56:02,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:56:02,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:56:02,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:56:02,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:56:02,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,486 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 09:56:02,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,496 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:56:02,504 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:56:02,504 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:56:02,504 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:56:02,505 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (1/1) ... [2024-11-16 09:56:02,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:56:02,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:56:02,547 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 09:56:02,551 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 09:56:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:56:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:56:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:56:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-16 09:56:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-16 09:56:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-16 09:56:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-16 09:56:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-16 09:56:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-16 09:56:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-16 09:56:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-16 09:56:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-16 09:56:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-16 09:56:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-16 09:56:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-16 09:56:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-16 09:56:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-16 09:56:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-16 09:56:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-16 09:56:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-16 09:56:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-16 09:56:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-16 09:56:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-16 09:56:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:56:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-16 09:56:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-16 09:56:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-16 09:56:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-16 09:56:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:56:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:56:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-16 09:56:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-16 09:56:02,704 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:56:02,705 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:56:03,434 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-16 09:56:03,434 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:56:03,459 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:56:03,460 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:56:03,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:56:03 BoogieIcfgContainer [2024-11-16 09:56:03,463 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:56:03,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:56:03,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:56:03,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:56:03,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:56:01" (1/3) ... [2024-11-16 09:56:03,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888466a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:56:03, skipping insertion in model container [2024-11-16 09:56:03,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:02" (2/3) ... [2024-11-16 09:56:03,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888466a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:56:03, skipping insertion in model container [2024-11-16 09:56:03,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:56:03" (3/3) ... [2024-11-16 09:56:03,469 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2024-11-16 09:56:03,481 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:56:03,481 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:56:03,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:56:03,540 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;@1c6787b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:56:03,541 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:56:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 514 states, 459 states have (on average 1.5206971677559913) internal successors, (698), 465 states have internal predecessors, (698), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 09:56:03,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:03,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:03,558 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] [2024-11-16 09:56:03,558 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:03,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:03,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1652459271, now seen corresponding path program 1 times [2024-11-16 09:56:03,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:03,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536684627] [2024-11-16 09:56:03,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:03,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:03,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:03,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:03,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:03,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:03,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:03,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:03,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:03,887 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 09:56:03,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:03,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536684627] [2024-11-16 09:56:03,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536684627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:03,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:03,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802465352] [2024-11-16 09:56:03,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:03,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:03,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:03,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:03,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:03,919 INFO L87 Difference]: Start difference. First operand has 514 states, 459 states have (on average 1.5206971677559913) internal successors, (698), 465 states have internal predecessors, (698), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:04,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:04,576 INFO L93 Difference]: Finished difference Result 1005 states and 1516 transitions. [2024-11-16 09:56:04,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:56:04,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:56:04,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:04,599 INFO L225 Difference]: With dead ends: 1005 [2024-11-16 09:56:04,601 INFO L226 Difference]: Without dead ends: 505 [2024-11-16 09:56:04,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:04,611 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 959 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:04,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1466 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:56:04,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-16 09:56:04,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 487. [2024-11-16 09:56:04,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 434 states have (on average 1.4608294930875576) internal successors, (634), 438 states have internal predecessors, (634), 38 states have call successors, (38), 14 states have call predecessors, (38), 13 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-16 09:56:04,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 708 transitions. [2024-11-16 09:56:04,689 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 708 transitions. Word has length 69 [2024-11-16 09:56:04,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:04,689 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 708 transitions. [2024-11-16 09:56:04,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:04,690 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 708 transitions. [2024-11-16 09:56:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:04,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:04,696 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] [2024-11-16 09:56:04,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:56:04,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:04,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:04,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1932809160, now seen corresponding path program 1 times [2024-11-16 09:56:04,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:04,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633913509] [2024-11-16 09:56:04,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:04,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:04,926 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 09:56:04,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:04,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633913509] [2024-11-16 09:56:04,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633913509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:04,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:04,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:04,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427954889] [2024-11-16 09:56:04,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:04,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:04,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:04,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:04,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:04,929 INFO L87 Difference]: Start difference. First operand 487 states and 708 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:05,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:05,815 INFO L93 Difference]: Finished difference Result 738 states and 1050 transitions. [2024-11-16 09:56:05,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:05,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:56:05,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:05,819 INFO L225 Difference]: With dead ends: 738 [2024-11-16 09:56:05,821 INFO L226 Difference]: Without dead ends: 636 [2024-11-16 09:56:05,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:56:05,823 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 1424 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:05,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 1862 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:05,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-16 09:56:05,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 596. [2024-11-16 09:56:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 523 states have (on average 1.435946462715105) internal successors, (751), 529 states have internal predecessors, (751), 49 states have call successors, (49), 21 states have call predecessors, (49), 22 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-16 09:56:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 852 transitions. [2024-11-16 09:56:05,868 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 852 transitions. Word has length 69 [2024-11-16 09:56:05,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:05,868 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 852 transitions. [2024-11-16 09:56:05,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:05,869 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 852 transitions. [2024-11-16 09:56:05,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:05,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:05,873 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] [2024-11-16 09:56:05,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:56:05,873 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:05,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:05,874 INFO L85 PathProgramCache]: Analyzing trace with hash 103299317, now seen corresponding path program 1 times [2024-11-16 09:56:05,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:05,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396973018] [2024-11-16 09:56:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:05,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:05,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:06,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:06,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:06,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:06,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:06,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:06,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:06,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:06,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:06,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396973018] [2024-11-16 09:56:06,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396973018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:06,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:06,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:06,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924619619] [2024-11-16 09:56:06,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:06,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:06,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:06,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:06,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:06,057 INFO L87 Difference]: Start difference. First operand 596 states and 852 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:07,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:07,028 INFO L93 Difference]: Finished difference Result 984 states and 1369 transitions. [2024-11-16 09:56:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:56:07,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:56:07,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:07,032 INFO L225 Difference]: With dead ends: 984 [2024-11-16 09:56:07,032 INFO L226 Difference]: Without dead ends: 780 [2024-11-16 09:56:07,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:56:07,034 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1682 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:07,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 2175 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:56:07,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-16 09:56:07,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 705. [2024-11-16 09:56:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 612 states have (on average 1.4166666666666667) internal successors, (867), 620 states have internal predecessors, (867), 60 states have call successors, (60), 28 states have call predecessors, (60), 31 states have return successors, (71), 60 states have call predecessors, (71), 58 states have call successors, (71) [2024-11-16 09:56:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 998 transitions. [2024-11-16 09:56:07,066 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 998 transitions. Word has length 69 [2024-11-16 09:56:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:07,066 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 998 transitions. [2024-11-16 09:56:07,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 998 transitions. [2024-11-16 09:56:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:07,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:07,068 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] [2024-11-16 09:56:07,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:56:07,069 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:07,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:07,069 INFO L85 PathProgramCache]: Analyzing trace with hash 796692022, now seen corresponding path program 1 times [2024-11-16 09:56:07,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:07,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499409335] [2024-11-16 09:56:07,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:07,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:07,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:07,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:07,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:07,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:07,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:07,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:07,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:07,201 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 09:56:07,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:07,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499409335] [2024-11-16 09:56:07,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499409335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:07,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:07,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:56:07,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609880232] [2024-11-16 09:56:07,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:07,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:56:07,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:07,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:56:07,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:07,203 INFO L87 Difference]: Start difference. First operand 705 states and 998 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:08,115 INFO L93 Difference]: Finished difference Result 1044 states and 1449 transitions. [2024-11-16 09:56:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-16 09:56:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:08,122 INFO L225 Difference]: With dead ends: 1044 [2024-11-16 09:56:08,122 INFO L226 Difference]: Without dead ends: 737 [2024-11-16 09:56:08,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:56:08,123 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 570 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:08,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 3027 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:56:08,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-16 09:56:08,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 710. [2024-11-16 09:56:08,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 616 states have (on average 1.4107142857142858) internal successors, (869), 624 states have internal predecessors, (869), 60 states have call successors, (60), 28 states have call predecessors, (60), 32 states have return successors, (72), 61 states have call predecessors, (72), 58 states have call successors, (72) [2024-11-16 09:56:08,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1001 transitions. [2024-11-16 09:56:08,147 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1001 transitions. Word has length 69 [2024-11-16 09:56:08,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:08,148 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1001 transitions. [2024-11-16 09:56:08,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:08,148 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1001 transitions. [2024-11-16 09:56:08,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:08,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:08,149 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] [2024-11-16 09:56:08,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:56:08,149 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:08,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:08,150 INFO L85 PathProgramCache]: Analyzing trace with hash 920765269, now seen corresponding path program 1 times [2024-11-16 09:56:08,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:08,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82303836] [2024-11-16 09:56:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:08,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,268 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 09:56:08,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82303836] [2024-11-16 09:56:08,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82303836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:08,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:08,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:56:08,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635845694] [2024-11-16 09:56:08,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:08,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:56:08,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:08,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:56:08,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:08,271 INFO L87 Difference]: Start difference. First operand 710 states and 1001 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:56:09,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:09,578 INFO L93 Difference]: Finished difference Result 2226 states and 2990 transitions. [2024-11-16 09:56:09,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:56:09,579 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 69 [2024-11-16 09:56:09,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:09,585 INFO L225 Difference]: With dead ends: 2226 [2024-11-16 09:56:09,585 INFO L226 Difference]: Without dead ends: 1896 [2024-11-16 09:56:09,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:56:09,587 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 3956 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3970 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:09,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3970 Valid, 2486 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:56:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2024-11-16 09:56:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1744. [2024-11-16 09:56:09,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1464 states have (on average 1.3271857923497268) internal successors, (1943), 1487 states have internal predecessors, (1943), 148 states have call successors, (148), 111 states have call predecessors, (148), 130 states have return successors, (186), 148 states have call predecessors, (186), 146 states have call successors, (186) [2024-11-16 09:56:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2277 transitions. [2024-11-16 09:56:09,654 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2277 transitions. Word has length 69 [2024-11-16 09:56:09,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:09,654 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2277 transitions. [2024-11-16 09:56:09,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:56:09,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2277 transitions. [2024-11-16 09:56:09,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:56:09,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:09,656 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] [2024-11-16 09:56:09,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:56:09,656 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:09,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:09,656 INFO L85 PathProgramCache]: Analyzing trace with hash 283553376, now seen corresponding path program 1 times [2024-11-16 09:56:09,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:09,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655838584] [2024-11-16 09:56:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:09,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,769 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 09:56:09,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:09,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655838584] [2024-11-16 09:56:09,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655838584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:09,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:09,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:56:09,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570284242] [2024-11-16 09:56:09,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:09,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:56:09,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:09,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:56:09,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:09,772 INFO L87 Difference]: Start difference. First operand 1744 states and 2277 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:10,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:10,608 INFO L93 Difference]: Finished difference Result 3204 states and 4119 transitions. [2024-11-16 09:56:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:56:10,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-16 09:56:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:10,614 INFO L225 Difference]: With dead ends: 3204 [2024-11-16 09:56:10,615 INFO L226 Difference]: Without dead ends: 1846 [2024-11-16 09:56:10,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:56:10,617 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 856 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:10,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 2674 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-16 09:56:10,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1774. [2024-11-16 09:56:10,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1488 states have (on average 1.3165322580645162) internal successors, (1959), 1511 states have internal predecessors, (1959), 148 states have call successors, (148), 111 states have call predecessors, (148), 136 states have return successors, (192), 154 states have call predecessors, (192), 146 states have call successors, (192) [2024-11-16 09:56:10,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2299 transitions. [2024-11-16 09:56:10,685 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2299 transitions. Word has length 72 [2024-11-16 09:56:10,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:10,685 INFO L471 AbstractCegarLoop]: Abstraction has 1774 states and 2299 transitions. [2024-11-16 09:56:10,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:10,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2299 transitions. [2024-11-16 09:56:10,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:56:10,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:10,686 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] [2024-11-16 09:56:10,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:56:10,687 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:10,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:10,687 INFO L85 PathProgramCache]: Analyzing trace with hash -2061113665, now seen corresponding path program 1 times [2024-11-16 09:56:10,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:10,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160810159] [2024-11-16 09:56:10,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:10,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:10,815 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 09:56:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:10,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160810159] [2024-11-16 09:56:10,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160810159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:10,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:10,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:10,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966534367] [2024-11-16 09:56:10,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:10,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:10,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:10,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:10,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:10,817 INFO L87 Difference]: Start difference. First operand 1774 states and 2299 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:11,713 INFO L93 Difference]: Finished difference Result 3162 states and 3979 transitions. [2024-11-16 09:56:11,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:56:11,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2024-11-16 09:56:11,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:11,721 INFO L225 Difference]: With dead ends: 3162 [2024-11-16 09:56:11,722 INFO L226 Difference]: Without dead ends: 2030 [2024-11-16 09:56:11,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:56:11,724 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1648 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:11,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 1891 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2024-11-16 09:56:11,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1708. [2024-11-16 09:56:11,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1438 states have (on average 1.3143254520166898) internal successors, (1890), 1456 states have internal predecessors, (1890), 142 states have call successors, (142), 106 states have call predecessors, (142), 126 states have return successors, (177), 147 states have call predecessors, (177), 140 states have call successors, (177) [2024-11-16 09:56:11,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2209 transitions. [2024-11-16 09:56:11,835 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2209 transitions. Word has length 72 [2024-11-16 09:56:11,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:11,836 INFO L471 AbstractCegarLoop]: Abstraction has 1708 states and 2209 transitions. [2024-11-16 09:56:11,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:11,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2209 transitions. [2024-11-16 09:56:11,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:56:11,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:11,837 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] [2024-11-16 09:56:11,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:56:11,837 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:11,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:11,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1710313728, now seen corresponding path program 1 times [2024-11-16 09:56:11,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:11,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400127538] [2024-11-16 09:56:11,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:11,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,936 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 09:56:11,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:11,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400127538] [2024-11-16 09:56:11,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400127538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:11,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:11,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:11,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113853404] [2024-11-16 09:56:11,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:11,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:11,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:11,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:11,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:11,938 INFO L87 Difference]: Start difference. First operand 1708 states and 2209 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:12,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:12,564 INFO L93 Difference]: Finished difference Result 4307 states and 5429 transitions. [2024-11-16 09:56:12,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:56:12,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2024-11-16 09:56:12,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:12,576 INFO L225 Difference]: With dead ends: 4307 [2024-11-16 09:56:12,576 INFO L226 Difference]: Without dead ends: 2986 [2024-11-16 09:56:12,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:56:12,581 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 1624 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:12,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 1509 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:56:12,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2024-11-16 09:56:12,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2865. [2024-11-16 09:56:12,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2352 states have (on average 1.2648809523809523) internal successors, (2975), 2387 states have internal predecessors, (2975), 261 states have call successors, (261), 205 states have call predecessors, (261), 250 states have return successors, (368), 275 states have call predecessors, (368), 259 states have call successors, (368) [2024-11-16 09:56:12,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 3604 transitions. [2024-11-16 09:56:12,724 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 3604 transitions. Word has length 72 [2024-11-16 09:56:12,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:12,724 INFO L471 AbstractCegarLoop]: Abstraction has 2865 states and 3604 transitions. [2024-11-16 09:56:12,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 3604 transitions. [2024-11-16 09:56:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:56:12,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:12,725 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] [2024-11-16 09:56:12,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:56:12,725 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:12,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:12,726 INFO L85 PathProgramCache]: Analyzing trace with hash -689950341, now seen corresponding path program 1 times [2024-11-16 09:56:12,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:12,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622153752] [2024-11-16 09:56:12,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:12,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,787 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 09:56:12,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:12,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622153752] [2024-11-16 09:56:12,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622153752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:12,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:12,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:12,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365288709] [2024-11-16 09:56:12,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:12,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:12,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:12,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:12,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:12,789 INFO L87 Difference]: Start difference. First operand 2865 states and 3604 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:13,506 INFO L93 Difference]: Finished difference Result 6554 states and 8122 transitions. [2024-11-16 09:56:13,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:13,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-16 09:56:13,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:13,524 INFO L225 Difference]: With dead ends: 6554 [2024-11-16 09:56:13,524 INFO L226 Difference]: Without dead ends: 4081 [2024-11-16 09:56:13,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:13,530 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 1082 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:13,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 1484 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:56:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2024-11-16 09:56:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 3785. [2024-11-16 09:56:13,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 3086 states have (on average 1.2495139338950096) internal successors, (3856), 3126 states have internal predecessors, (3856), 353 states have call successors, (353), 285 states have call predecessors, (353), 344 states have return successors, (482), 376 states have call predecessors, (482), 351 states have call successors, (482) [2024-11-16 09:56:13,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 4691 transitions. [2024-11-16 09:56:13,737 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 4691 transitions. Word has length 73 [2024-11-16 09:56:13,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:13,738 INFO L471 AbstractCegarLoop]: Abstraction has 3785 states and 4691 transitions. [2024-11-16 09:56:13,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:13,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 4691 transitions. [2024-11-16 09:56:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:56:13,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:13,739 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] [2024-11-16 09:56:13,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:56:13,739 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:13,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:13,739 INFO L85 PathProgramCache]: Analyzing trace with hash -857369915, now seen corresponding path program 1 times [2024-11-16 09:56:13,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:13,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955968866] [2024-11-16 09:56:13,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:13,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,795 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 09:56:13,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:13,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955968866] [2024-11-16 09:56:13,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955968866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:13,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:13,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:13,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204073055] [2024-11-16 09:56:13,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:13,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:13,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:13,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:13,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:13,797 INFO L87 Difference]: Start difference. First operand 3785 states and 4691 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:14,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:14,490 INFO L93 Difference]: Finished difference Result 8112 states and 9920 transitions. [2024-11-16 09:56:14,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:14,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 83 [2024-11-16 09:56:14,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:14,526 INFO L225 Difference]: With dead ends: 8112 [2024-11-16 09:56:14,526 INFO L226 Difference]: Without dead ends: 4717 [2024-11-16 09:56:14,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:14,531 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 1276 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:14,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1575 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:56:14,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4717 states. [2024-11-16 09:56:14,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4717 to 4397. [2024-11-16 09:56:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 3584 states have (on average 1.2427455357142858) internal successors, (4454), 3628 states have internal predecessors, (4454), 409 states have call successors, (409), 335 states have call predecessors, (409), 402 states have return successors, (555), 436 states have call predecessors, (555), 407 states have call successors, (555) [2024-11-16 09:56:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 5418 transitions. [2024-11-16 09:56:14,788 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 5418 transitions. Word has length 83 [2024-11-16 09:56:14,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:14,789 INFO L471 AbstractCegarLoop]: Abstraction has 4397 states and 5418 transitions. [2024-11-16 09:56:14,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 5418 transitions. [2024-11-16 09:56:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 09:56:14,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:14,790 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:14,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:56:14,791 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:14,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:14,791 INFO L85 PathProgramCache]: Analyzing trace with hash -2031524368, now seen corresponding path program 1 times [2024-11-16 09:56:14,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:14,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675216926] [2024-11-16 09:56:14,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:14,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:14,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:14,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675216926] [2024-11-16 09:56:14,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675216926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:14,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:14,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:14,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562785093] [2024-11-16 09:56:14,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:14,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:14,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:14,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:14,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:14,880 INFO L87 Difference]: Start difference. First operand 4397 states and 5418 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:15,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:15,795 INFO L93 Difference]: Finished difference Result 5542 states and 6772 transitions. [2024-11-16 09:56:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:56:15,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 86 [2024-11-16 09:56:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:15,812 INFO L225 Difference]: With dead ends: 5542 [2024-11-16 09:56:15,812 INFO L226 Difference]: Without dead ends: 5538 [2024-11-16 09:56:15,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:56:15,813 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 1959 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:15,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1969 Valid, 1553 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:56:15,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2024-11-16 09:56:16,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 4889. [2024-11-16 09:56:16,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4889 states, 3969 states have (on average 1.2345679012345678) internal successors, (4900), 4016 states have internal predecessors, (4900), 459 states have call successors, (459), 379 states have call predecessors, (459), 459 states have return successors, (632), 496 states have call predecessors, (632), 458 states have call successors, (632) [2024-11-16 09:56:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4889 states to 4889 states and 5991 transitions. [2024-11-16 09:56:16,079 INFO L78 Accepts]: Start accepts. Automaton has 4889 states and 5991 transitions. Word has length 86 [2024-11-16 09:56:16,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:16,079 INFO L471 AbstractCegarLoop]: Abstraction has 4889 states and 5991 transitions. [2024-11-16 09:56:16,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:16,080 INFO L276 IsEmpty]: Start isEmpty. Operand 4889 states and 5991 transitions. [2024-11-16 09:56:16,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 09:56:16,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:16,082 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:16,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:56:16,083 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:16,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1427843588, now seen corresponding path program 1 times [2024-11-16 09:56:16,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:16,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929484232] [2024-11-16 09:56:16,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:16,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:16,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:16,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929484232] [2024-11-16 09:56:16,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929484232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:56:16,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051102319] [2024-11-16 09:56:16,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:16,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:56:16,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:56:16,200 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 09:56:16,201 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 09:56:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 09:56:16,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:56:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:16,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:56:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:16,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051102319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:56:16,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:56:16,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-16 09:56:16,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287983659] [2024-11-16 09:56:16,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:56:16,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:56:16,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:16,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:56:16,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:16,616 INFO L87 Difference]: Start difference. First operand 4889 states and 5991 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 09:56:18,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:18,282 INFO L93 Difference]: Finished difference Result 9595 states and 11588 transitions. [2024-11-16 09:56:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-16 09:56:18,286 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 87 [2024-11-16 09:56:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:18,310 INFO L225 Difference]: With dead ends: 9595 [2024-11-16 09:56:18,310 INFO L226 Difference]: Without dead ends: 9591 [2024-11-16 09:56:18,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2024-11-16 09:56:18,313 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 2794 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2856 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:18,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2856 Valid, 2279 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:56:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9591 states. [2024-11-16 09:56:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9591 to 8635. [2024-11-16 09:56:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 6973 states have (on average 1.220708446866485) internal successors, (8512), 7055 states have internal predecessors, (8512), 818 states have call successors, (818), 693 states have call predecessors, (818), 842 states have return successors, (1133), 889 states have call predecessors, (1133), 817 states have call successors, (1133) [2024-11-16 09:56:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 10463 transitions. [2024-11-16 09:56:18,806 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 10463 transitions. Word has length 87 [2024-11-16 09:56:18,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:18,807 INFO L471 AbstractCegarLoop]: Abstraction has 8635 states and 10463 transitions. [2024-11-16 09:56:18,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 09:56:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 10463 transitions. [2024-11-16 09:56:18,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 09:56:18,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:18,811 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:18,824 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 09:56:19,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 09:56:19,012 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:19,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:19,013 INFO L85 PathProgramCache]: Analyzing trace with hash 517704142, now seen corresponding path program 2 times [2024-11-16 09:56:19,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:19,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765760165] [2024-11-16 09:56:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:19,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:19,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:19,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765760165] [2024-11-16 09:56:19,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765760165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:19,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:19,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:19,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745718640] [2024-11-16 09:56:19,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:19,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:19,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:19,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:19,062 INFO L87 Difference]: Start difference. First operand 8635 states and 10463 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:19,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:19,751 INFO L93 Difference]: Finished difference Result 11521 states and 13964 transitions. [2024-11-16 09:56:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:56:19,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 92 [2024-11-16 09:56:19,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:19,766 INFO L225 Difference]: With dead ends: 11521 [2024-11-16 09:56:19,767 INFO L226 Difference]: Without dead ends: 4735 [2024-11-16 09:56:19,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:19,777 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 1221 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:19,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1661 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:56:19,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4735 states. [2024-11-16 09:56:20,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4735 to 3601. [2024-11-16 09:56:20,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2945 states have (on average 1.2281833616298812) internal successors, (3617), 2973 states have internal predecessors, (3617), 337 states have call successors, (337), 275 states have call predecessors, (337), 317 states have return successors, (432), 355 states have call predecessors, (432), 336 states have call successors, (432) [2024-11-16 09:56:20,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 4386 transitions. [2024-11-16 09:56:20,154 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 4386 transitions. Word has length 92 [2024-11-16 09:56:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:20,154 INFO L471 AbstractCegarLoop]: Abstraction has 3601 states and 4386 transitions. [2024-11-16 09:56:20,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 4386 transitions. [2024-11-16 09:56:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:56:20,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:20,156 INFO L215 NwaCegarLoop]: trace histogram [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 09:56:20,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:56:20,157 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:20,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2042352270, now seen corresponding path program 1 times [2024-11-16 09:56:20,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:20,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727201120] [2024-11-16 09:56:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:20,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:56:20,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:20,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727201120] [2024-11-16 09:56:20,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727201120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:20,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:20,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:20,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414184055] [2024-11-16 09:56:20,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:20,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:20,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:20,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:20,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:20,268 INFO L87 Difference]: Start difference. First operand 3601 states and 4386 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:21,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:21,488 INFO L93 Difference]: Finished difference Result 9925 states and 11917 transitions. [2024-11-16 09:56:21,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 09:56:21,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 94 [2024-11-16 09:56:21,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:21,502 INFO L225 Difference]: With dead ends: 9925 [2024-11-16 09:56:21,502 INFO L226 Difference]: Without dead ends: 5846 [2024-11-16 09:56:21,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-16 09:56:21,508 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 1446 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:21,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 2354 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:21,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5846 states. [2024-11-16 09:56:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5846 to 5581. [2024-11-16 09:56:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5581 states, 4490 states have (on average 1.1988864142538975) internal successors, (5383), 4555 states have internal predecessors, (5383), 537 states have call successors, (537), 447 states have call predecessors, (537), 552 states have return successors, (782), 581 states have call predecessors, (782), 536 states have call successors, (782) [2024-11-16 09:56:21,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5581 states to 5581 states and 6702 transitions. [2024-11-16 09:56:21,893 INFO L78 Accepts]: Start accepts. Automaton has 5581 states and 6702 transitions. Word has length 94 [2024-11-16 09:56:21,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:21,893 INFO L471 AbstractCegarLoop]: Abstraction has 5581 states and 6702 transitions. [2024-11-16 09:56:21,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:21,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5581 states and 6702 transitions. [2024-11-16 09:56:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 09:56:21,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:21,895 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:56:21,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:56:21,896 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:21,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:21,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1924161506, now seen corresponding path program 1 times [2024-11-16 09:56:21,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:21,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188088661] [2024-11-16 09:56:21,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:21,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:56:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 09:56:22,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:22,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188088661] [2024-11-16 09:56:22,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188088661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:22,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:22,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:56:22,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722151967] [2024-11-16 09:56:22,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:22,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:56:22,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:22,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:56:22,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:22,007 INFO L87 Difference]: Start difference. First operand 5581 states and 6702 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:23,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:23,235 INFO L93 Difference]: Finished difference Result 9252 states and 11031 transitions. [2024-11-16 09:56:23,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 09:56:23,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2024-11-16 09:56:23,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:23,247 INFO L225 Difference]: With dead ends: 9252 [2024-11-16 09:56:23,247 INFO L226 Difference]: Without dead ends: 4626 [2024-11-16 09:56:23,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-16 09:56:23,255 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 2315 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:23,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 2388 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:23,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4626 states. [2024-11-16 09:56:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4626 to 4180. [2024-11-16 09:56:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4180 states, 3355 states have (on average 1.191058122205663) internal successors, (3996), 3408 states have internal predecessors, (3996), 402 states have call successors, (402), 329 states have call predecessors, (402), 421 states have return successors, (551), 445 states have call predecessors, (551), 401 states have call successors, (551) [2024-11-16 09:56:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4180 states to 4180 states and 4949 transitions. [2024-11-16 09:56:23,524 INFO L78 Accepts]: Start accepts. Automaton has 4180 states and 4949 transitions. Word has length 112 [2024-11-16 09:56:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:23,525 INFO L471 AbstractCegarLoop]: Abstraction has 4180 states and 4949 transitions. [2024-11-16 09:56:23,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:23,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4180 states and 4949 transitions. [2024-11-16 09:56:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 09:56:23,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:23,528 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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] [2024-11-16 09:56:23,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:56:23,528 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:23,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:23,528 INFO L85 PathProgramCache]: Analyzing trace with hash -947430942, now seen corresponding path program 1 times [2024-11-16 09:56:23,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:23,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917258782] [2024-11-16 09:56:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:23,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:56:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 09:56:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 09:56:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 09:56:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 09:56:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 09:56:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 09:56:23,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:23,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917258782] [2024-11-16 09:56:23,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917258782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:56:23,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096354933] [2024-11-16 09:56:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:23,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:56:23,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:56:23,646 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 09:56:23,647 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 09:56:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 09:56:23,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:56:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:56:23,787 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:56:23,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096354933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:23,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:56:23,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-16 09:56:23,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532800217] [2024-11-16 09:56:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:23,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:23,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:23,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:56:23,788 INFO L87 Difference]: Start difference. First operand 4180 states and 4949 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:56:24,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:24,030 INFO L93 Difference]: Finished difference Result 6181 states and 7267 transitions. [2024-11-16 09:56:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:56:24,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 159 [2024-11-16 09:56:24,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:24,039 INFO L225 Difference]: With dead ends: 6181 [2024-11-16 09:56:24,039 INFO L226 Difference]: Without dead ends: 2393 [2024-11-16 09:56:24,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:56:24,044 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 0 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:24,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3506 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:56:24,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2024-11-16 09:56:24,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2393. [2024-11-16 09:56:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2014 states have (on average 1.2040714995034756) internal successors, (2425), 2030 states have internal predecessors, (2425), 191 states have call successors, (191), 143 states have call predecessors, (191), 186 states have return successors, (258), 220 states have call predecessors, (258), 190 states have call successors, (258) [2024-11-16 09:56:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 2874 transitions. [2024-11-16 09:56:24,269 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 2874 transitions. Word has length 159 [2024-11-16 09:56:24,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:24,270 INFO L471 AbstractCegarLoop]: Abstraction has 2393 states and 2874 transitions. [2024-11-16 09:56:24,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:56:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 2874 transitions. [2024-11-16 09:56:24,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:24,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:24,273 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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] [2024-11-16 09:56:24,288 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 09:56:24,473 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,SelfDestructingSolverStorable15 [2024-11-16 09:56:24,474 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:24,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:24,475 INFO L85 PathProgramCache]: Analyzing trace with hash -319860770, now seen corresponding path program 1 times [2024-11-16 09:56:24,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:24,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546512310] [2024-11-16 09:56:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:24,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 09:56:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 09:56:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 09:56:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 09:56:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 09:56:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 09:56:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-16 09:56:24,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:24,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546512310] [2024-11-16 09:56:24,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546512310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:24,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:24,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:24,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852316144] [2024-11-16 09:56:24,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:24,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:24,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:24,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:24,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:24,551 INFO L87 Difference]: Start difference. First operand 2393 states and 2874 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 09:56:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:25,261 INFO L93 Difference]: Finished difference Result 2442 states and 2925 transitions. [2024-11-16 09:56:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:25,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 161 [2024-11-16 09:56:25,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:25,268 INFO L225 Difference]: With dead ends: 2442 [2024-11-16 09:56:25,268 INFO L226 Difference]: Without dead ends: 2033 [2024-11-16 09:56:25,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:25,270 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 691 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:25,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1766 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:56:25,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2024-11-16 09:56:25,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1988. [2024-11-16 09:56:25,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1693 states have (on average 1.2197282929710573) internal successors, (2065), 1706 states have internal predecessors, (2065), 150 states have call successors, (150), 108 states have call predecessors, (150), 143 states have return successors, (203), 174 states have call predecessors, (203), 149 states have call successors, (203) [2024-11-16 09:56:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2418 transitions. [2024-11-16 09:56:25,430 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2418 transitions. Word has length 161 [2024-11-16 09:56:25,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:25,430 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 2418 transitions. [2024-11-16 09:56:25,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 09:56:25,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2418 transitions. [2024-11-16 09:56:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:25,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:25,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:56:25,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:56:25,433 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:25,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:25,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1781434188, now seen corresponding path program 1 times [2024-11-16 09:56:25,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:25,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930130161] [2024-11-16 09:56:25,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:25,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,599 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 09:56:25,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:25,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930130161] [2024-11-16 09:56:25,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930130161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:25,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:25,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:25,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523949210] [2024-11-16 09:56:25,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:25,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:25,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:25,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:25,601 INFO L87 Difference]: Start difference. First operand 1988 states and 2418 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:27,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:27,621 INFO L93 Difference]: Finished difference Result 2960 states and 3925 transitions. [2024-11-16 09:56:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:27,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:27,628 INFO L225 Difference]: With dead ends: 2960 [2024-11-16 09:56:27,628 INFO L226 Difference]: Without dead ends: 2601 [2024-11-16 09:56:27,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:27,630 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1613 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:27,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 1615 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:56:27,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2024-11-16 09:56:27,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2361. [2024-11-16 09:56:27,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 2040 states have (on average 1.268627450980392) internal successors, (2588), 2054 states have internal predecessors, (2588), 169 states have call successors, (169), 114 states have call predecessors, (169), 150 states have return successors, (225), 193 states have call predecessors, (225), 168 states have call successors, (225) [2024-11-16 09:56:27,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 2982 transitions. [2024-11-16 09:56:27,830 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 2982 transitions. Word has length 161 [2024-11-16 09:56:27,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:27,830 INFO L471 AbstractCegarLoop]: Abstraction has 2361 states and 2982 transitions. [2024-11-16 09:56:27,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:27,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 2982 transitions. [2024-11-16 09:56:27,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:27,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:27,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:27,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:56:27,833 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:27,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:27,833 INFO L85 PathProgramCache]: Analyzing trace with hash -611992654, now seen corresponding path program 1 times [2024-11-16 09:56:27,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:27,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918558018] [2024-11-16 09:56:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:27,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:27,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:27,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:27,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:27,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:28,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:28,005 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 09:56:28,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:28,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918558018] [2024-11-16 09:56:28,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918558018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:28,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:28,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:28,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284925481] [2024-11-16 09:56:28,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:28,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:28,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:28,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:28,007 INFO L87 Difference]: Start difference. First operand 2361 states and 2982 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:30,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:30,522 INFO L93 Difference]: Finished difference Result 3841 states and 5279 transitions. [2024-11-16 09:56:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:30,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:30,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:30,531 INFO L225 Difference]: With dead ends: 3841 [2024-11-16 09:56:30,531 INFO L226 Difference]: Without dead ends: 3109 [2024-11-16 09:56:30,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:30,533 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 1638 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 2985 SdHoareTripleChecker+Invalid, 3396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:30,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 2985 Invalid, 3396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:56:30,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2024-11-16 09:56:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2711. [2024-11-16 09:56:30,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2364 states have (on average 1.2965313028764804) internal successors, (3065), 2379 states have internal predecessors, (3065), 188 states have call successors, (188), 120 states have call predecessors, (188), 157 states have return successors, (246), 213 states have call predecessors, (246), 187 states have call successors, (246) [2024-11-16 09:56:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3499 transitions. [2024-11-16 09:56:30,750 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3499 transitions. Word has length 161 [2024-11-16 09:56:30,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:30,750 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 3499 transitions. [2024-11-16 09:56:30,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:30,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3499 transitions. [2024-11-16 09:56:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:30,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:30,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:30,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:56:30,753 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:30,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:30,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1505927565, now seen corresponding path program 1 times [2024-11-16 09:56:30,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:30,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715979629] [2024-11-16 09:56:30,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:30,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:30,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:30,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:30,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:30,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:30,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:30,903 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 09:56:30,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:30,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715979629] [2024-11-16 09:56:30,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715979629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:30,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:30,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:30,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440845846] [2024-11-16 09:56:30,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:30,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:30,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:30,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:30,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:30,904 INFO L87 Difference]: Start difference. First operand 2711 states and 3499 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:33,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:33,385 INFO L93 Difference]: Finished difference Result 5142 states and 7262 transitions. [2024-11-16 09:56:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:33,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:33,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:33,397 INFO L225 Difference]: With dead ends: 5142 [2024-11-16 09:56:33,397 INFO L226 Difference]: Without dead ends: 4060 [2024-11-16 09:56:33,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:33,401 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 1636 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 3301 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:33,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 2983 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3301 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:56:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4060 states. [2024-11-16 09:56:33,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4060 to 3412. [2024-11-16 09:56:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3013 states have (on average 1.3342183869897113) internal successors, (4020), 3030 states have internal predecessors, (4020), 226 states have call successors, (226), 132 states have call predecessors, (226), 171 states have return successors, (292), 253 states have call predecessors, (292), 225 states have call successors, (292) [2024-11-16 09:56:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 4538 transitions. [2024-11-16 09:56:33,685 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 4538 transitions. Word has length 161 [2024-11-16 09:56:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:33,685 INFO L471 AbstractCegarLoop]: Abstraction has 3412 states and 4538 transitions. [2024-11-16 09:56:33,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 4538 transitions. [2024-11-16 09:56:33,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:33,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:33,688 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:33,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:56:33,688 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:33,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:33,689 INFO L85 PathProgramCache]: Analyzing trace with hash -426385518, now seen corresponding path program 1 times [2024-11-16 09:56:33,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:33,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459076449] [2024-11-16 09:56:33,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:33,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,842 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 09:56:33,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:33,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459076449] [2024-11-16 09:56:33,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459076449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:33,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:33,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:33,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920678155] [2024-11-16 09:56:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:33,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:33,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:33,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:33,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:33,845 INFO L87 Difference]: Start difference. First operand 3412 states and 4538 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:36,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:36,444 INFO L93 Difference]: Finished difference Result 7655 states and 11065 transitions. [2024-11-16 09:56:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:36,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:36,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:36,456 INFO L225 Difference]: With dead ends: 7655 [2024-11-16 09:56:36,456 INFO L226 Difference]: Without dead ends: 5872 [2024-11-16 09:56:36,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:36,460 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 1632 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 3292 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:36,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 2983 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3292 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:56:36,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5872 states. [2024-11-16 09:56:36,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5872 to 4815. [2024-11-16 09:56:36,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4815 states, 4312 states have (on average 1.3752319109461966) internal successors, (5930), 4333 states have internal predecessors, (5930), 302 states have call successors, (302), 156 states have call predecessors, (302), 199 states have return successors, (390), 333 states have call predecessors, (390), 301 states have call successors, (390) [2024-11-16 09:56:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4815 states to 4815 states and 6622 transitions. [2024-11-16 09:56:36,763 INFO L78 Accepts]: Start accepts. Automaton has 4815 states and 6622 transitions. Word has length 161 [2024-11-16 09:56:36,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:36,763 INFO L471 AbstractCegarLoop]: Abstraction has 4815 states and 6622 transitions. [2024-11-16 09:56:36,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:36,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4815 states and 6622 transitions. [2024-11-16 09:56:36,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:36,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:36,766 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:36,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:56:36,767 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:36,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:36,767 INFO L85 PathProgramCache]: Analyzing trace with hash -391561581, now seen corresponding path program 1 times [2024-11-16 09:56:36,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:36,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340221773] [2024-11-16 09:56:36,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:36,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,914 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 09:56:36,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:36,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340221773] [2024-11-16 09:56:36,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340221773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:36,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:36,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007939783] [2024-11-16 09:56:36,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:36,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:36,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:36,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:36,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:36,916 INFO L87 Difference]: Start difference. First operand 4815 states and 6622 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:39,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:39,604 INFO L93 Difference]: Finished difference Result 12680 states and 18687 transitions. [2024-11-16 09:56:39,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:39,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:39,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:39,632 INFO L225 Difference]: With dead ends: 12680 [2024-11-16 09:56:39,632 INFO L226 Difference]: Without dead ends: 9494 [2024-11-16 09:56:39,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:39,643 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 1628 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 3283 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 3376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:39,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 2983 Invalid, 3376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3283 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:56:39,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2024-11-16 09:56:40,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 7626. [2024-11-16 09:56:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 6915 states have (on average 1.4108459869848156) internal successors, (9756), 6944 states have internal predecessors, (9756), 454 states have call successors, (454), 204 states have call predecessors, (454), 255 states have return successors, (604), 493 states have call predecessors, (604), 453 states have call successors, (604) [2024-11-16 09:56:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10814 transitions. [2024-11-16 09:56:40,095 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10814 transitions. Word has length 161 [2024-11-16 09:56:40,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:40,096 INFO L471 AbstractCegarLoop]: Abstraction has 7626 states and 10814 transitions. [2024-11-16 09:56:40,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:40,096 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10814 transitions. [2024-11-16 09:56:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:40,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:40,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:40,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:56:40,101 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:40,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:40,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1964866418, now seen corresponding path program 1 times [2024-11-16 09:56:40,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:40,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196045379] [2024-11-16 09:56:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:40,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:40,244 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 09:56:40,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:40,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196045379] [2024-11-16 09:56:40,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196045379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:40,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:40,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:40,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488218301] [2024-11-16 09:56:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:40,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:40,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:40,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:40,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:40,246 INFO L87 Difference]: Start difference. First operand 7626 states and 10814 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:41,879 INFO L93 Difference]: Finished difference Result 15580 states and 23125 transitions. [2024-11-16 09:56:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:41,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:41,898 INFO L225 Difference]: With dead ends: 15580 [2024-11-16 09:56:41,898 INFO L226 Difference]: Without dead ends: 9583 [2024-11-16 09:56:41,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:41,909 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1255 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:41,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1651 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:56:41,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2024-11-16 09:56:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 7626. [2024-11-16 09:56:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 6915 states have (on average 1.4083875632682574) internal successors, (9739), 6944 states have internal predecessors, (9739), 454 states have call successors, (454), 204 states have call predecessors, (454), 255 states have return successors, (604), 493 states have call predecessors, (604), 453 states have call successors, (604) [2024-11-16 09:56:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10797 transitions. [2024-11-16 09:56:42,381 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10797 transitions. Word has length 161 [2024-11-16 09:56:42,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:42,381 INFO L471 AbstractCegarLoop]: Abstraction has 7626 states and 10797 transitions. [2024-11-16 09:56:42,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10797 transitions. [2024-11-16 09:56:42,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:42,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:42,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:42,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:56:42,386 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:42,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:42,387 INFO L85 PathProgramCache]: Analyzing trace with hash 516859571, now seen corresponding path program 1 times [2024-11-16 09:56:42,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:42,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754919852] [2024-11-16 09:56:42,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:42,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:42,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:42,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:42,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:42,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:42,549 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 09:56:42,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:42,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754919852] [2024-11-16 09:56:42,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754919852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:42,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:42,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:42,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917508641] [2024-11-16 09:56:42,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:42,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:42,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:42,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:42,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:42,552 INFO L87 Difference]: Start difference. First operand 7626 states and 10797 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:44,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:44,216 INFO L93 Difference]: Finished difference Result 15562 states and 23039 transitions. [2024-11-16 09:56:44,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:44,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:44,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:44,236 INFO L225 Difference]: With dead ends: 15562 [2024-11-16 09:56:44,236 INFO L226 Difference]: Without dead ends: 9565 [2024-11-16 09:56:44,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:44,245 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1253 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:44,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1651 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:56:44,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9565 states. [2024-11-16 09:56:44,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9565 to 7626. [2024-11-16 09:56:44,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 6915 states have (on average 1.4059291395516993) internal successors, (9722), 6944 states have internal predecessors, (9722), 454 states have call successors, (454), 204 states have call predecessors, (454), 255 states have return successors, (604), 493 states have call predecessors, (604), 453 states have call successors, (604) [2024-11-16 09:56:44,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10780 transitions. [2024-11-16 09:56:44,839 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10780 transitions. Word has length 161 [2024-11-16 09:56:44,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:44,839 INFO L471 AbstractCegarLoop]: Abstraction has 7626 states and 10780 transitions. [2024-11-16 09:56:44,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:44,840 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10780 transitions. [2024-11-16 09:56:44,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:44,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:44,844 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:44,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:56:44,844 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:44,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:44,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1855622994, now seen corresponding path program 1 times [2024-11-16 09:56:44,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:44,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125471148] [2024-11-16 09:56:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:44,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:44,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:44,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125471148] [2024-11-16 09:56:44,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125471148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:44,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:44,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:44,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795042211] [2024-11-16 09:56:44,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:44,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:44,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:44,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:44,998 INFO L87 Difference]: Start difference. First operand 7626 states and 10780 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:46,647 INFO L93 Difference]: Finished difference Result 15543 states and 22951 transitions. [2024-11-16 09:56:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:46,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:46,666 INFO L225 Difference]: With dead ends: 15543 [2024-11-16 09:56:46,666 INFO L226 Difference]: Without dead ends: 9546 [2024-11-16 09:56:46,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:46,677 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1251 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:46,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 1651 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:56:46,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9546 states. [2024-11-16 09:56:47,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9546 to 7626. [2024-11-16 09:56:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 6915 states have (on average 1.403470715835141) internal successors, (9705), 6944 states have internal predecessors, (9705), 454 states have call successors, (454), 204 states have call predecessors, (454), 255 states have return successors, (604), 493 states have call predecessors, (604), 453 states have call successors, (604) [2024-11-16 09:56:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 10763 transitions. [2024-11-16 09:56:47,185 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 10763 transitions. Word has length 161 [2024-11-16 09:56:47,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:47,185 INFO L471 AbstractCegarLoop]: Abstraction has 7626 states and 10763 transitions. [2024-11-16 09:56:47,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 10763 transitions. [2024-11-16 09:56:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:47,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:47,189 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:47,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:56:47,189 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:47,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:47,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2037356243, now seen corresponding path program 1 times [2024-11-16 09:56:47,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:47,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981167438] [2024-11-16 09:56:47,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:47,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:47,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:47,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:47,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:47,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:47,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:47,334 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 09:56:47,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:47,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981167438] [2024-11-16 09:56:47,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981167438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:47,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:47,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:47,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215889981] [2024-11-16 09:56:47,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:47,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:47,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:47,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:47,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:47,336 INFO L87 Difference]: Start difference. First operand 7626 states and 10763 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:50,226 INFO L93 Difference]: Finished difference Result 22670 states and 33625 transitions. [2024-11-16 09:56:50,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:50,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:50,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:50,255 INFO L225 Difference]: With dead ends: 22670 [2024-11-16 09:56:50,255 INFO L226 Difference]: Without dead ends: 16673 [2024-11-16 09:56:50,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:50,264 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 1600 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 3202 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:50,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 2983 Invalid, 3295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3202 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:56:50,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16673 states. [2024-11-16 09:56:50,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16673 to 13309. [2024-11-16 09:56:51,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13309 states, 12182 states have (on average 1.426530947299294) internal successors, (17378), 12227 states have internal predecessors, (17378), 758 states have call successors, (758), 300 states have call predecessors, (758), 367 states have return successors, (1086), 813 states have call predecessors, (1086), 757 states have call successors, (1086) [2024-11-16 09:56:51,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13309 states to 13309 states and 19222 transitions. [2024-11-16 09:56:51,028 INFO L78 Accepts]: Start accepts. Automaton has 13309 states and 19222 transitions. Word has length 161 [2024-11-16 09:56:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:51,028 INFO L471 AbstractCegarLoop]: Abstraction has 13309 states and 19222 transitions. [2024-11-16 09:56:51,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 13309 states and 19222 transitions. [2024-11-16 09:56:51,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:51,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:51,035 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:51,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 09:56:51,035 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:51,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:51,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2113201358, now seen corresponding path program 1 times [2024-11-16 09:56:51,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:51,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367472512] [2024-11-16 09:56:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:51,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:51,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:51,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:51,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:51,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:51,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:51,167 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 09:56:51,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:51,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367472512] [2024-11-16 09:56:51,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367472512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:51,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:51,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:51,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590830279] [2024-11-16 09:56:51,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:51,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:51,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:51,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:51,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:51,169 INFO L87 Difference]: Start difference. First operand 13309 states and 19222 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:53,098 INFO L93 Difference]: Finished difference Result 28519 states and 42625 transitions. [2024-11-16 09:56:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:53,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:53,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:53,133 INFO L225 Difference]: With dead ends: 28519 [2024-11-16 09:56:53,133 INFO L226 Difference]: Without dead ends: 16839 [2024-11-16 09:56:53,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:53,152 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1250 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:53,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 1651 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:56:53,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16839 states. [2024-11-16 09:56:53,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16839 to 13309. [2024-11-16 09:56:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13309 states, 12182 states have (on average 1.4238220325069775) internal successors, (17345), 12227 states have internal predecessors, (17345), 758 states have call successors, (758), 300 states have call predecessors, (758), 367 states have return successors, (1086), 813 states have call predecessors, (1086), 757 states have call successors, (1086) [2024-11-16 09:56:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13309 states to 13309 states and 19189 transitions. [2024-11-16 09:56:53,937 INFO L78 Accepts]: Start accepts. Automaton has 13309 states and 19189 transitions. Word has length 161 [2024-11-16 09:56:53,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:53,938 INFO L471 AbstractCegarLoop]: Abstraction has 13309 states and 19189 transitions. [2024-11-16 09:56:53,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 13309 states and 19189 transitions. [2024-11-16 09:56:53,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:53,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:53,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:53,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 09:56:53,943 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:53,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:53,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1909329651, now seen corresponding path program 1 times [2024-11-16 09:56:53,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:53,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147152091] [2024-11-16 09:56:53,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:53,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:54,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:54,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:54,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:54,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:54,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:54,104 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 09:56:54,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:54,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147152091] [2024-11-16 09:56:54,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147152091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:54,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:54,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:54,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101290987] [2024-11-16 09:56:54,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:54,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:54,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:54,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:54,106 INFO L87 Difference]: Start difference. First operand 13309 states and 19189 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:57,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:57,849 INFO L93 Difference]: Finished difference Result 42727 states and 63898 transitions. [2024-11-16 09:56:57,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:57,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:56:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:57,912 INFO L225 Difference]: With dead ends: 42727 [2024-11-16 09:56:57,912 INFO L226 Difference]: Without dead ends: 31047 [2024-11-16 09:56:57,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:57,932 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 1588 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:57,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 2983 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:56:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31047 states. [2024-11-16 09:56:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31047 to 24731. [2024-11-16 09:56:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24731 states, 22772 states have (on average 1.4370279290356578) internal successors, (32724), 22849 states have internal predecessors, (32724), 1366 states have call successors, (1366), 492 states have call predecessors, (1366), 591 states have return successors, (2212), 1453 states have call predecessors, (2212), 1365 states have call successors, (2212) [2024-11-16 09:56:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24731 states to 24731 states and 36302 transitions. [2024-11-16 09:56:59,304 INFO L78 Accepts]: Start accepts. Automaton has 24731 states and 36302 transitions. Word has length 161 [2024-11-16 09:56:59,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:59,304 INFO L471 AbstractCegarLoop]: Abstraction has 24731 states and 36302 transitions. [2024-11-16 09:56:59,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 24731 states and 36302 transitions. [2024-11-16 09:56:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:59,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:59,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:59,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 09:56:59,316 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:59,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:59,316 INFO L85 PathProgramCache]: Analyzing trace with hash 99426066, now seen corresponding path program 1 times [2024-11-16 09:56:59,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:59,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846139303] [2024-11-16 09:56:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:59,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:59,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:59,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:56:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:59,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:56:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:59,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:59,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:56:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:59,462 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 09:56:59,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:59,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846139303] [2024-11-16 09:56:59,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846139303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:59,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:59,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:59,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089397821] [2024-11-16 09:56:59,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:59,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:59,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:59,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:59,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:59,464 INFO L87 Difference]: Start difference. First operand 24731 states and 36302 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:04,980 INFO L93 Difference]: Finished difference Result 92441 states and 139901 transitions. [2024-11-16 09:57:04,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:57:04,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:57:04,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:05,129 INFO L225 Difference]: With dead ends: 92441 [2024-11-16 09:57:05,129 INFO L226 Difference]: Without dead ends: 69339 [2024-11-16 09:57:05,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:57:05,173 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 1992 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:05,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 2973 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:57:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69339 states. [2024-11-16 09:57:07,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69339 to 47443. [2024-11-16 09:57:07,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47443 states, 43884 states have (on average 1.4456749612615076) internal successors, (63442), 44025 states have internal predecessors, (63442), 2518 states have call successors, (2518), 876 states have call predecessors, (2518), 1039 states have return successors, (4886), 2669 states have call predecessors, (4886), 2517 states have call successors, (4886) [2024-11-16 09:57:07,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47443 states to 47443 states and 70846 transitions. [2024-11-16 09:57:07,990 INFO L78 Accepts]: Start accepts. Automaton has 47443 states and 70846 transitions. Word has length 161 [2024-11-16 09:57:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:07,990 INFO L471 AbstractCegarLoop]: Abstraction has 47443 states and 70846 transitions. [2024-11-16 09:57:07,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:07,990 INFO L276 IsEmpty]: Start isEmpty. Operand 47443 states and 70846 transitions. [2024-11-16 09:57:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:57:08,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:08,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:08,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 09:57:08,011 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:08,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:08,012 INFO L85 PathProgramCache]: Analyzing trace with hash -374599917, now seen corresponding path program 1 times [2024-11-16 09:57:08,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:08,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682149642] [2024-11-16 09:57:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:08,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:08,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:57:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:08,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:57:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:08,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:57:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:08,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:57:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:08,159 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 09:57:08,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:08,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682149642] [2024-11-16 09:57:08,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682149642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:08,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:08,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460685476] [2024-11-16 09:57:08,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:08,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:08,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:08,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:08,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:08,161 INFO L87 Difference]: Start difference. First operand 47443 states and 70846 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:17,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:17,381 INFO L93 Difference]: Finished difference Result 180091 states and 275827 transitions. [2024-11-16 09:57:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:57:17,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:57:17,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:17,712 INFO L225 Difference]: With dead ends: 180091 [2024-11-16 09:57:17,712 INFO L226 Difference]: Without dead ends: 134277 [2024-11-16 09:57:17,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:57:17,808 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 1947 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 3143 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:17,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 2964 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3143 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:57:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134277 states. [2024-11-16 09:57:23,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134277 to 91649. [2024-11-16 09:57:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91649 states, 84954 states have (on average 1.4525743343456459) internal successors, (123402), 85223 states have internal predecessors, (123402), 4758 states have call successors, (4758), 1644 states have call predecessors, (4758), 1935 states have return successors, (11628), 5037 states have call predecessors, (11628), 4757 states have call successors, (11628) [2024-11-16 09:57:23,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91649 states to 91649 states and 139788 transitions. [2024-11-16 09:57:23,867 INFO L78 Accepts]: Start accepts. Automaton has 91649 states and 139788 transitions. Word has length 161 [2024-11-16 09:57:23,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:23,868 INFO L471 AbstractCegarLoop]: Abstraction has 91649 states and 139788 transitions. [2024-11-16 09:57:23,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:23,868 INFO L276 IsEmpty]: Start isEmpty. Operand 91649 states and 139788 transitions. [2024-11-16 09:57:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:57:23,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:23,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:23,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 09:57:23,904 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:23,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash -666985742, now seen corresponding path program 1 times [2024-11-16 09:57:23,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:23,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113728330] [2024-11-16 09:57:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:23,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:23,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:23,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:57:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:24,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:57:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:24,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:57:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:24,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:57:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:24,039 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 09:57:24,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:24,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113728330] [2024-11-16 09:57:24,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113728330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:24,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:24,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:24,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948420809] [2024-11-16 09:57:24,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:24,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:24,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:24,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:24,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:24,040 INFO L87 Difference]: Start difference. First operand 91649 states and 139788 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)