./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC --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 64bit --witnessprinter.graph.data.programhash 488726b8ccc0b612f25ee0101dd53df4c2193db1507ae34a5375bcd64b035150 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:22:39,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:22:39,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 00:22:40,003 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:22:40,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:22:40,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:22:40,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:22:40,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:22:40,042 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:22:40,042 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:22:40,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:22:40,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:22:40,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:22:40,044 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:22:40,044 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:22:40,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:22:40,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:22:40,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:22:40,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:22:40,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:22:40,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:22:40,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:22:40,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:22:40,045 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:22:40,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:22:40,045 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:22:40,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:22:40,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:22:40,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:22:40,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:22:40,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:22:40,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:22:40,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:22:40,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:22:40,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:22:40,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:22:40,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:22:40,048 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:22:40,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:22:40,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:22:40,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:22:40,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:22:40,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:22:40,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:22:40,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:22:40,050 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 488726b8ccc0b612f25ee0101dd53df4c2193db1507ae34a5375bcd64b035150 [2024-11-24 00:22:40,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:22:40,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:22:40,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:22:40,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:22:40,409 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:22:40,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.c [2024-11-24 00:22:41,063 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/data/7b072c3b2/5c356c3cfe7e4a7fb0034a6d49d0a088/FLAGea3c6fa7e [2024-11-24 00:22:46,383 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:22:46,386 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.c [2024-11-24 00:22:46,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/data/7b072c3b2/5c356c3cfe7e4a7fb0034a6d49d0a088/FLAGea3c6fa7e [2024-11-24 00:22:46,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/data/7b072c3b2/5c356c3cfe7e4a7fb0034a6d49d0a088 [2024-11-24 00:22:46,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:22:46,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:22:46,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:22:46,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:22:46,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:22:46,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:22:46" (1/1) ... [2024-11-24 00:22:46,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9bcc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:46, skipping insertion in model container [2024-11-24 00:22:46,461 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:22:46" (1/1) ... [2024-11-24 00:22:46,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:22:46,812 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.c[1183,1196] [2024-11-24 00:22:47,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:22:47,515 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:22:47,528 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.3.prop1-back-serstep.c[1183,1196] [2024-11-24 00:22:47,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:22:47,932 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:22:47,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47 WrapperNode [2024-11-24 00:22:47,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:22:47,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:22:47,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:22:47,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:22:47,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:48,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:49,671 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12899 [2024-11-24 00:22:49,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:22:49,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:22:49,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:22:49,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:22:49,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:49,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:50,099 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:50,564 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]. [2024-11-24 00:22:50,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:50,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:51,081 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:51,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:51,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:51,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:51,348 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:51,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:22:51,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:22:51,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:22:51,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:22:51,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (1/1) ... [2024-11-24 00:22:51,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:22:51,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:51,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:22:51,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecfd47d2-2f1d-416d-9861-a4387d170b19/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:22:51,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:22:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:22:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:22:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:22:52,589 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:22:52,592 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:23:22,131 INFO L? ?]: Removed 7068 outVars from TransFormulas that were not future-live. [2024-11-24 00:23:22,131 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:23:22,237 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:23:22,237 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:23:22,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:23:22 BoogieIcfgContainer [2024-11-24 00:23:22,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:23:22,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:23:22,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:23:22,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:23:22,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:22:46" (1/3) ... [2024-11-24 00:23:22,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ab507c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:23:22, skipping insertion in model container [2024-11-24 00:23:22,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:22:47" (2/3) ... [2024-11-24 00:23:22,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ab507c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:23:22, skipping insertion in model container [2024-11-24 00:23:22,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:23:22" (3/3) ... [2024-11-24 00:23:22,257 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.production_cell.3.prop1-back-serstep.c [2024-11-24 00:23:22,274 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:23:22,276 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.production_cell.3.prop1-back-serstep.c that has 1 procedures, 4534 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:23:22,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:23:22,454 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;@5e303688, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:23:22,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:23:22,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 4534 states, 4532 states have (on average 1.4997793468667255) internal successors, (6797), 4533 states have internal predecessors, (6797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-24 00:23:22,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:22,516 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:22,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:22,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:22,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1230780726, now seen corresponding path program 1 times [2024-11-24 00:23:22,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:22,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840763280] [2024-11-24 00:23:22,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:23:26,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:26,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840763280] [2024-11-24 00:23:26,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840763280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:26,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:26,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:23:26,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837934754] [2024-11-24 00:23:26,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:26,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:23:26,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:26,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:23:26,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:23:26,310 INFO L87 Difference]: Start difference. First operand has 4534 states, 4532 states have (on average 1.4997793468667255) internal successors, (6797), 4533 states have internal predecessors, (6797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:34,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:34,640 INFO L93 Difference]: Finished difference Result 12908 states and 19357 transitions. [2024-11-24 00:23:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:23:34,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 465 [2024-11-24 00:23:34,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:34,692 INFO L225 Difference]: With dead ends: 12908 [2024-11-24 00:23:34,692 INFO L226 Difference]: Without dead ends: 8620 [2024-11-24 00:23:34,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:23:34,707 INFO L435 NwaCegarLoop]: 5032 mSDtfsCounter, 6230 mSDsluCounter, 14969 mSDsCounter, 0 mSdLazyCounter, 6804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6230 SdHoareTripleChecker+Valid, 20001 SdHoareTripleChecker+Invalid, 6805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:34,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6230 Valid, 20001 Invalid, 6805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6804 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-24 00:23:34,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8620 states. [2024-11-24 00:23:34,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8620 to 4822. [2024-11-24 00:23:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4821 states have (on average 1.4992740095415888) internal successors, (7228), 4821 states have internal predecessors, (7228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:34,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 7228 transitions. [2024-11-24 00:23:34,993 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 7228 transitions. Word has length 465 [2024-11-24 00:23:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:34,998 INFO L471 AbstractCegarLoop]: Abstraction has 4822 states and 7228 transitions. [2024-11-24 00:23:34,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 7228 transitions. [2024-11-24 00:23:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-24 00:23:35,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:35,010 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:35,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:23:35,011 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:35,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash -633476941, now seen corresponding path program 1 times [2024-11-24 00:23:35,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:35,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436427417] [2024-11-24 00:23:35,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:23:36,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:36,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436427417] [2024-11-24 00:23:36,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436427417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:36,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:36,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:23:36,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119081478] [2024-11-24 00:23:36,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:36,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:23:36,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:36,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:23:36,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:23:36,755 INFO L87 Difference]: Start difference. First operand 4822 states and 7228 transitions. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:42,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:42,798 INFO L93 Difference]: Finished difference Result 13033 states and 19538 transitions. [2024-11-24 00:23:42,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:23:42,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 467 [2024-11-24 00:23:42,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:42,826 INFO L225 Difference]: With dead ends: 13033 [2024-11-24 00:23:42,826 INFO L226 Difference]: Without dead ends: 8748 [2024-11-24 00:23:42,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:23:42,834 INFO L435 NwaCegarLoop]: 5475 mSDtfsCounter, 6290 mSDsluCounter, 22009 mSDsCounter, 0 mSdLazyCounter, 6669 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6290 SdHoareTripleChecker+Valid, 27484 SdHoareTripleChecker+Invalid, 6731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 6669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:42,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6290 Valid, 27484 Invalid, 6731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 6669 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-24 00:23:42,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8748 states. [2024-11-24 00:23:42,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 4829. [2024-11-24 00:23:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4828 states have (on average 1.4989643744821872) internal successors, (7237), 4828 states have internal predecessors, (7237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 7237 transitions. [2024-11-24 00:23:42,967 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 7237 transitions. Word has length 467 [2024-11-24 00:23:42,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:42,968 INFO L471 AbstractCegarLoop]: Abstraction has 4829 states and 7237 transitions. [2024-11-24 00:23:42,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:42,969 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 7237 transitions. [2024-11-24 00:23:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-24 00:23:42,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:42,984 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:42,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:23:42,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:42,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:42,989 INFO L85 PathProgramCache]: Analyzing trace with hash 418548830, now seen corresponding path program 1 times [2024-11-24 00:23:42,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:42,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093006669] [2024-11-24 00:23:42,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:42,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:23:44,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:44,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093006669] [2024-11-24 00:23:44,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093006669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:44,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:44,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:23:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26549824] [2024-11-24 00:23:44,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:44,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:23:44,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:44,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:23:44,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:23:44,588 INFO L87 Difference]: Start difference. First operand 4829 states and 7237 transitions. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:44,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:44,673 INFO L93 Difference]: Finished difference Result 4833 states and 7241 transitions. [2024-11-24 00:23:44,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:23:44,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 468 [2024-11-24 00:23:44,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:44,690 INFO L225 Difference]: With dead ends: 4833 [2024-11-24 00:23:44,690 INFO L226 Difference]: Without dead ends: 4831 [2024-11-24 00:23:44,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:23:44,695 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 13576 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20367 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:44,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20367 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:23:44,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states. [2024-11-24 00:23:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 4831. [2024-11-24 00:23:44,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4831 states, 4830 states have (on average 1.4987577639751553) internal successors, (7239), 4830 states have internal predecessors, (7239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:44,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4831 states to 4831 states and 7239 transitions. [2024-11-24 00:23:44,807 INFO L78 Accepts]: Start accepts. Automaton has 4831 states and 7239 transitions. Word has length 468 [2024-11-24 00:23:44,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:44,808 INFO L471 AbstractCegarLoop]: Abstraction has 4831 states and 7239 transitions. [2024-11-24 00:23:44,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:44,808 INFO L276 IsEmpty]: Start isEmpty. Operand 4831 states and 7239 transitions. [2024-11-24 00:23:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-24 00:23:44,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:44,821 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:44,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:23:44,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:44,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:44,822 INFO L85 PathProgramCache]: Analyzing trace with hash 91809985, now seen corresponding path program 1 times [2024-11-24 00:23:44,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:44,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940232346] [2024-11-24 00:23:44,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:44,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:45,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:23:45,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:45,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940232346] [2024-11-24 00:23:45,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940232346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:45,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:45,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:23:45,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098760099] [2024-11-24 00:23:45,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:45,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:23:45,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:45,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:23:45,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:23:45,684 INFO L87 Difference]: Start difference. First operand 4831 states and 7239 transitions. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:45,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:45,797 INFO L93 Difference]: Finished difference Result 9120 states and 13669 transitions. [2024-11-24 00:23:45,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:23:45,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 469 [2024-11-24 00:23:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:45,828 INFO L225 Difference]: With dead ends: 9120 [2024-11-24 00:23:45,829 INFO L226 Difference]: Without dead ends: 4833 [2024-11-24 00:23:45,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:23:45,935 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 13572 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20363 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:45,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20363 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:23:45,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2024-11-24 00:23:46,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4833. [2024-11-24 00:23:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4833 states, 4832 states have (on average 1.4985513245033113) internal successors, (7241), 4832 states have internal predecessors, (7241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:46,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4833 states to 4833 states and 7241 transitions. [2024-11-24 00:23:46,123 INFO L78 Accepts]: Start accepts. Automaton has 4833 states and 7241 transitions. Word has length 469 [2024-11-24 00:23:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:46,125 INFO L471 AbstractCegarLoop]: Abstraction has 4833 states and 7241 transitions. [2024-11-24 00:23:46,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4833 states and 7241 transitions. [2024-11-24 00:23:46,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-24 00:23:46,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:46,136 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:23:46,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:23:46,137 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:46,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1748146583, now seen corresponding path program 1 times [2024-11-24 00:23:46,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:46,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994169415] [2024-11-24 00:23:46,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:46,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:23:47,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:47,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994169415] [2024-11-24 00:23:47,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994169415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:47,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:47,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:23:47,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327190948] [2024-11-24 00:23:47,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:47,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:23:47,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:47,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:23:47,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:23:47,647 INFO L87 Difference]: Start difference. First operand 4833 states and 7241 transitions. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:23:47,850 INFO L93 Difference]: Finished difference Result 13099 states and 19633 transitions. [2024-11-24 00:23:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:23:47,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 470 [2024-11-24 00:23:47,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:23:47,883 INFO L225 Difference]: With dead ends: 13099 [2024-11-24 00:23:47,883 INFO L226 Difference]: Without dead ends: 8810 [2024-11-24 00:23:47,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:23:47,890 INFO L435 NwaCegarLoop]: 6789 mSDtfsCounter, 6312 mSDsluCounter, 19994 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6312 SdHoareTripleChecker+Valid, 26783 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:23:47,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6312 Valid, 26783 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:23:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2024-11-24 00:23:48,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 5205. [2024-11-24 00:23:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 1.4984627209838586) internal successors, (7798), 5204 states have internal predecessors, (7798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 7798 transitions. [2024-11-24 00:23:48,024 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 7798 transitions. Word has length 470 [2024-11-24 00:23:48,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:23:48,025 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 7798 transitions. [2024-11-24 00:23:48,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:23:48,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 7798 transitions. [2024-11-24 00:23:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2614 [2024-11-24 00:23:48,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:23:48,229 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2024-11-24 00:23:48,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:23:48,230 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:23:48,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:23:48,232 INFO L85 PathProgramCache]: Analyzing trace with hash 874220228, now seen corresponding path program 1 times [2024-11-24 00:23:48,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:23:48,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172629898] [2024-11-24 00:23:48,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:23:48,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:23:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:23:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-24 00:23:59,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:23:59,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172629898] [2024-11-24 00:23:59,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172629898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:23:59,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:23:59,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:23:59,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491846671] [2024-11-24 00:23:59,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:23:59,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:23:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:23:59,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:23:59,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:23:59,904 INFO L87 Difference]: Start difference. First operand 5205 states and 7798 transitions. Second operand has 5 states, 5 states have (on average 456.4) internal successors, (2282), 5 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:00,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:00,170 INFO L93 Difference]: Finished difference Result 9498 states and 14232 transitions. [2024-11-24 00:24:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:24:00,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 456.4) internal successors, (2282), 5 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2613 [2024-11-24 00:24:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:00,213 INFO L225 Difference]: With dead ends: 9498 [2024-11-24 00:24:00,213 INFO L226 Difference]: Without dead ends: 5209 [2024-11-24 00:24:00,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:00,229 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 20357 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27148 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:00,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27148 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:24:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2024-11-24 00:24:00,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5205. [2024-11-24 00:24:00,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 1.4984627209838586) internal successors, (7798), 5204 states have internal predecessors, (7798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:00,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 7798 transitions. [2024-11-24 00:24:00,360 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 7798 transitions. Word has length 2613 [2024-11-24 00:24:00,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:00,368 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 7798 transitions. [2024-11-24 00:24:00,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 456.4) internal successors, (2282), 5 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:00,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 7798 transitions. [2024-11-24 00:24:00,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2615 [2024-11-24 00:24:00,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:00,493 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1] [2024-11-24 00:24:00,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:24:00,494 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:00,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2055054213, now seen corresponding path program 1 times [2024-11-24 00:24:00,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:00,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058577200] [2024-11-24 00:24:00,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:00,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:09,718 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-24 00:24:09,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:09,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058577200] [2024-11-24 00:24:09,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058577200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:09,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:09,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:09,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822915754] [2024-11-24 00:24:09,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:09,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:09,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:09,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:09,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:09,728 INFO L87 Difference]: Start difference. First operand 5205 states and 7798 transitions. Second operand has 5 states, 5 states have (on average 457.0) internal successors, (2285), 5 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:09,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:09,895 INFO L93 Difference]: Finished difference Result 9502 states and 14238 transitions. [2024-11-24 00:24:09,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:24:09,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 457.0) internal successors, (2285), 5 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2614 [2024-11-24 00:24:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:09,914 INFO L225 Difference]: With dead ends: 9502 [2024-11-24 00:24:09,914 INFO L226 Difference]: Without dead ends: 5209 [2024-11-24 00:24:09,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:09,920 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 20357 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27148 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:09,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27148 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:09,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2024-11-24 00:24:10,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5207. [2024-11-24 00:24:10,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 1.498271225509028) internal successors, (7800), 5206 states have internal predecessors, (7800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:10,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 7800 transitions. [2024-11-24 00:24:10,034 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 7800 transitions. Word has length 2614 [2024-11-24 00:24:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:10,039 INFO L471 AbstractCegarLoop]: Abstraction has 5207 states and 7800 transitions. [2024-11-24 00:24:10,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 457.0) internal successors, (2285), 5 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 7800 transitions. [2024-11-24 00:24:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2616 [2024-11-24 00:24:10,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:10,152 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:10,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:24:10,153 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:10,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:10,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1832025021, now seen corresponding path program 1 times [2024-11-24 00:24:10,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:10,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99836079] [2024-11-24 00:24:10,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:10,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-24 00:24:18,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:18,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99836079] [2024-11-24 00:24:18,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99836079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:18,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:19,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:19,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332506826] [2024-11-24 00:24:19,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:19,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:19,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:19,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:19,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:19,006 INFO L87 Difference]: Start difference. First operand 5207 states and 7800 transitions. Second operand has 5 states, 5 states have (on average 457.6) internal successors, (2288), 5 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:19,153 INFO L93 Difference]: Finished difference Result 9510 states and 14248 transitions. [2024-11-24 00:24:19,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:24:19,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 457.6) internal successors, (2288), 5 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2615 [2024-11-24 00:24:19,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:19,169 INFO L225 Difference]: With dead ends: 9510 [2024-11-24 00:24:19,170 INFO L226 Difference]: Without dead ends: 5211 [2024-11-24 00:24:19,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:19,175 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 20357 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27148 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:19,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27148 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5211 states. [2024-11-24 00:24:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 5209. [2024-11-24 00:24:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 1.498079877112135) internal successors, (7802), 5208 states have internal predecessors, (7802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:19,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 7802 transitions. [2024-11-24 00:24:19,261 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 7802 transitions. Word has length 2615 [2024-11-24 00:24:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:19,264 INFO L471 AbstractCegarLoop]: Abstraction has 5209 states and 7802 transitions. [2024-11-24 00:24:19,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 457.6) internal successors, (2288), 5 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:19,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 7802 transitions. [2024-11-24 00:24:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2617 [2024-11-24 00:24:19,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:19,324 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:19,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:24:19,324 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:19,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:19,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1973245950, now seen corresponding path program 1 times [2024-11-24 00:24:19,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:19,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671642574] [2024-11-24 00:24:19,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:19,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:26,938 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-24 00:24:26,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:26,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671642574] [2024-11-24 00:24:26,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671642574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:26,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:26,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:26,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650694531] [2024-11-24 00:24:26,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:26,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:26,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:26,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:26,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:26,948 INFO L87 Difference]: Start difference. First operand 5209 states and 7802 transitions. Second operand has 5 states, 5 states have (on average 458.2) internal successors, (2291), 5 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:27,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:27,057 INFO L93 Difference]: Finished difference Result 9518 states and 14258 transitions. [2024-11-24 00:24:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:24:27,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 458.2) internal successors, (2291), 5 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2616 [2024-11-24 00:24:27,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:27,073 INFO L225 Difference]: With dead ends: 9518 [2024-11-24 00:24:27,073 INFO L226 Difference]: Without dead ends: 5213 [2024-11-24 00:24:27,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:27,079 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 13572 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20363 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:27,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20363 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:27,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2024-11-24 00:24:27,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 5211. [2024-11-24 00:24:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 1.4978886756238003) internal successors, (7804), 5210 states have internal predecessors, (7804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 7804 transitions. [2024-11-24 00:24:27,154 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 7804 transitions. Word has length 2616 [2024-11-24 00:24:27,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:27,156 INFO L471 AbstractCegarLoop]: Abstraction has 5211 states and 7804 transitions. [2024-11-24 00:24:27,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 458.2) internal successors, (2291), 5 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 7804 transitions. [2024-11-24 00:24:27,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2618 [2024-11-24 00:24:27,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:27,209 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:27,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:24:27,209 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:27,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:27,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1945962422, now seen corresponding path program 1 times [2024-11-24 00:24:27,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:27,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411337365] [2024-11-24 00:24:27,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:27,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-24 00:24:33,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:33,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411337365] [2024-11-24 00:24:33,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411337365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:33,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:33,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:24:33,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564638997] [2024-11-24 00:24:33,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:33,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:24:33,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:33,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:24:33,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:24:33,200 INFO L87 Difference]: Start difference. First operand 5211 states and 7804 transitions. Second operand has 4 states, 4 states have (on average 573.5) internal successors, (2294), 4 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:33,300 INFO L93 Difference]: Finished difference Result 9526 states and 14268 transitions. [2024-11-24 00:24:33,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:24:33,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 573.5) internal successors, (2294), 4 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2617 [2024-11-24 00:24:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:33,315 INFO L225 Difference]: With dead ends: 9526 [2024-11-24 00:24:33,315 INFO L226 Difference]: Without dead ends: 5215 [2024-11-24 00:24:33,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:24:33,320 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 13572 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20363 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:33,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20363 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:33,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5215 states. [2024-11-24 00:24:33,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5215 to 5213. [2024-11-24 00:24:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 1.497697620874904) internal successors, (7806), 5212 states have internal predecessors, (7806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 7806 transitions. [2024-11-24 00:24:33,394 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 7806 transitions. Word has length 2617 [2024-11-24 00:24:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:33,396 INFO L471 AbstractCegarLoop]: Abstraction has 5213 states and 7806 transitions. [2024-11-24 00:24:33,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 573.5) internal successors, (2294), 4 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:33,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 7806 transitions. [2024-11-24 00:24:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2619 [2024-11-24 00:24:33,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:33,447 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:33,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:24:33,448 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:33,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:33,450 INFO L85 PathProgramCache]: Analyzing trace with hash -330354551, now seen corresponding path program 1 times [2024-11-24 00:24:33,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:33,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916388050] [2024-11-24 00:24:33,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:33,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 00:24:39,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:39,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916388050] [2024-11-24 00:24:39,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916388050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:39,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:39,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:24:39,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437787052] [2024-11-24 00:24:39,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:39,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:24:39,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:39,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:24:39,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:39,905 INFO L87 Difference]: Start difference. First operand 5213 states and 7806 transitions. Second operand has 5 states, 5 states have (on average 459.4) internal successors, (2297), 5 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:40,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:40,006 INFO L93 Difference]: Finished difference Result 9534 states and 14278 transitions. [2024-11-24 00:24:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:24:40,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 459.4) internal successors, (2297), 5 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2618 [2024-11-24 00:24:40,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:40,021 INFO L225 Difference]: With dead ends: 9534 [2024-11-24 00:24:40,021 INFO L226 Difference]: Without dead ends: 5217 [2024-11-24 00:24:40,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:24:40,027 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 13572 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20363 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:40,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20363 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:40,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5217 states. [2024-11-24 00:24:40,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5217 to 5215. [2024-11-24 00:24:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 1.4975067126965862) internal successors, (7808), 5214 states have internal predecessors, (7808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 7808 transitions. [2024-11-24 00:24:40,098 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 7808 transitions. Word has length 2618 [2024-11-24 00:24:40,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:40,100 INFO L471 AbstractCegarLoop]: Abstraction has 5215 states and 7808 transitions. [2024-11-24 00:24:40,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 459.4) internal successors, (2297), 5 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:40,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 7808 transitions. [2024-11-24 00:24:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2620 [2024-11-24 00:24:40,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:40,149 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:40,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:24:40,150 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:40,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:40,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1912373585, now seen corresponding path program 1 times [2024-11-24 00:24:40,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:40,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711665531] [2024-11-24 00:24:40,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:40,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:24:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-24 00:24:46,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:24:46,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711665531] [2024-11-24 00:24:46,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711665531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:24:46,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:24:46,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:24:46,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469640278] [2024-11-24 00:24:46,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:24:46,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:24:46,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:24:46,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:24:46,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:24:46,592 INFO L87 Difference]: Start difference. First operand 5215 states and 7808 transitions. Second operand has 4 states, 4 states have (on average 575.0) internal successors, (2300), 4 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:46,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:24:46,675 INFO L93 Difference]: Finished difference Result 9542 states and 14288 transitions. [2024-11-24 00:24:46,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:24:46,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 575.0) internal successors, (2300), 4 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2619 [2024-11-24 00:24:46,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:24:46,686 INFO L225 Difference]: With dead ends: 9542 [2024-11-24 00:24:46,686 INFO L226 Difference]: Without dead ends: 5219 [2024-11-24 00:24:46,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:24:46,691 INFO L435 NwaCegarLoop]: 6791 mSDtfsCounter, 0 mSDsluCounter, 13572 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20363 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:24:46,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20363 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:24:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5219 states. [2024-11-24 00:24:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5219 to 5217. [2024-11-24 00:24:46,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 1.4973159509202454) internal successors, (7810), 5216 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 7810 transitions. [2024-11-24 00:24:46,765 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 7810 transitions. Word has length 2619 [2024-11-24 00:24:46,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:24:46,767 INFO L471 AbstractCegarLoop]: Abstraction has 5217 states and 7810 transitions. [2024-11-24 00:24:46,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 575.0) internal successors, (2300), 4 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:24:46,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 7810 transitions. [2024-11-24 00:24:46,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2621 [2024-11-24 00:24:46,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:24:46,816 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:24:46,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:24:46,817 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:24:46,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:24:46,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1718639088, now seen corresponding path program 1 times [2024-11-24 00:24:46,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:24:46,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934498813] [2024-11-24 00:24:46,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:24:46,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:24:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat