./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w8_d8_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w8_d8_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB --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 bc2e904f13a7fa14a7dbeef3e8e25f99c977216576e94bddd8177d4452d960d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:24:13,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:24:14,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 23:24:14,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:24:14,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:24:14,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:24:14,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:24:14,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:24:14,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:24:14,085 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:24:14,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:24:14,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:24:14,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:24:14,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:24:14,086 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:24:14,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:24:14,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:24:14,087 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:24:14,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:24:14,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:24:14,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:24:14,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:24:14,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:24:14,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:24:14,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:24:14,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:24:14,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:24:14,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:24:14,088 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:24:14,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:24:14,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:24:14,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:24:14,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:24:14,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:24:14,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:24:14,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:24:14,089 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_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB 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 -> bc2e904f13a7fa14a7dbeef3e8e25f99c977216576e94bddd8177d4452d960d5 [2024-11-27 23:24:14,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:24:14,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:24:14,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:24:14,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:24:14,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:24:14,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w8_d8_e0.c [2024-11-27 23:24:17,278 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/data/3683a56e1/b65b163f01dc4c81a1f05a8eb1aa4743/FLAGf621285c0 [2024-11-27 23:24:17,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:24:17,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w8_d8_e0.c [2024-11-27 23:24:17,659 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/data/3683a56e1/b65b163f01dc4c81a1f05a8eb1aa4743/FLAGf621285c0 [2024-11-27 23:24:17,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/data/3683a56e1/b65b163f01dc4c81a1f05a8eb1aa4743 [2024-11-27 23:24:17,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:24:17,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:24:17,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:24:17,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:24:17,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:24:17,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:17" (1/1) ... [2024-11-27 23:24:17,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fde38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:17, skipping insertion in model container [2024-11-27 23:24:17,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:17" (1/1) ... [2024-11-27 23:24:17,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:24:17,947 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_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w8_d8_e0.c[1269,1282] [2024-11-27 23:24:18,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:24:18,288 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:24:18,298 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_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w8_d8_e0.c[1269,1282] [2024-11-27 23:24:18,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:24:18,478 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:24:18,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18 WrapperNode [2024-11-27 23:24:18,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:24:18,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:24:18,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:24:18,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:24:18,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:18,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:18,900 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2622 [2024-11-27 23:24:18,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:24:18,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:24:18,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:24:18,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:24:18,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:18,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:18,999 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,091 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]. [2024-11-27 23:24:19,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,187 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:24:19,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:24:19,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:24:19,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:24:19,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (1/1) ... [2024-11-27 23:24:19,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:24:19,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:24:19,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:24:19,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:24:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:24:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:24:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:24:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:24:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:24:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:24:19,919 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:24:19,921 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:24:23,603 INFO L? ?]: Removed 1452 outVars from TransFormulas that were not future-live. [2024-11-27 23:24:23,603 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:24:23,627 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:24:23,628 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:24:23,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:24:23 BoogieIcfgContainer [2024-11-27 23:24:23,628 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:24:23,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:24:23,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:24:23,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:24:23,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:24:17" (1/3) ... [2024-11-27 23:24:23,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a933f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:24:23, skipping insertion in model container [2024-11-27 23:24:23,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18" (2/3) ... [2024-11-27 23:24:23,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a933f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:24:23, skipping insertion in model container [2024-11-27 23:24:23,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:24:23" (3/3) ... [2024-11-27 23:24:23,638 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w8_d8_e0.c [2024-11-27 23:24:23,658 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:24:23,661 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.arbitrated_top_n2_w8_d8_e0.c that has 2 procedures, 776 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:24:23,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:24:23,751 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;@330f0ca1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:24:23,751 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:24:23,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 776 states, 766 states have (on average 1.4934725848563968) internal successors, (1144), 767 states have internal predecessors, (1144), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:23,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 23:24:23,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:23,779 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:23,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:23,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:23,785 INFO L85 PathProgramCache]: Analyzing trace with hash -539896533, now seen corresponding path program 1 times [2024-11-27 23:24:23,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:23,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130508581] [2024-11-27 23:24:23,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-27 23:24:24,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:24,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130508581] [2024-11-27 23:24:24,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130508581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:24:24,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724646435] [2024-11-27 23:24:24,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:24,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:24:24,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:24:24,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:24:24,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:24:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:25,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:24:25,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-27 23:24:25,398 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:24:25,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724646435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:25,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:24:25,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:24:25,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25558665] [2024-11-27 23:24:25,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:25,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:24:25,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:25,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:24:25,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:24:25,433 INFO L87 Difference]: Start difference. First operand has 776 states, 766 states have (on average 1.4934725848563968) internal successors, (1144), 767 states have internal predecessors, (1144), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:25,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:25,521 INFO L93 Difference]: Finished difference Result 1431 states and 2145 transitions. [2024-11-27 23:24:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:24:25,523 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 263 [2024-11-27 23:24:25,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:25,549 INFO L225 Difference]: With dead ends: 1431 [2024-11-27 23:24:25,550 INFO L226 Difference]: Without dead ends: 773 [2024-11-27 23:24:25,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:24:25,563 INFO L435 NwaCegarLoop]: 1153 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:25,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:24:25,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-27 23:24:25,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2024-11-27 23:24:25,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 764 states have (on average 1.4908376963350785) internal successors, (1139), 764 states have internal predecessors, (1139), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:25,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1153 transitions. [2024-11-27 23:24:25,635 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1153 transitions. Word has length 263 [2024-11-27 23:24:25,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:25,636 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 1153 transitions. [2024-11-27 23:24:25,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1153 transitions. [2024-11-27 23:24:25,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-27 23:24:25,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:25,642 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:25,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:24:25,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:24:25,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:25,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:25,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1625029667, now seen corresponding path program 1 times [2024-11-27 23:24:25,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:25,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551189515] [2024-11-27 23:24:25,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:25,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:27,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:27,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551189515] [2024-11-27 23:24:27,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551189515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:27,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:27,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:27,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332874482] [2024-11-27 23:24:27,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:27,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:27,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:27,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:27,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:27,941 INFO L87 Difference]: Start difference. First operand 773 states and 1153 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:28,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:28,041 INFO L93 Difference]: Finished difference Result 777 states and 1157 transitions. [2024-11-27 23:24:28,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:28,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 263 [2024-11-27 23:24:28,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:28,050 INFO L225 Difference]: With dead ends: 777 [2024-11-27 23:24:28,050 INFO L226 Difference]: Without dead ends: 775 [2024-11-27 23:24:28,051 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 [2024-11-27 23:24:28,052 INFO L435 NwaCegarLoop]: 1151 mSDtfsCounter, 0 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3447 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 [2024-11-27 23:24:28,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3447 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:24:28,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-27 23:24:28,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2024-11-27 23:24:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 766 states have (on average 1.489556135770235) internal successors, (1141), 766 states have internal predecessors, (1141), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:28,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1155 transitions. [2024-11-27 23:24:28,092 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1155 transitions. Word has length 263 [2024-11-27 23:24:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:28,094 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1155 transitions. [2024-11-27 23:24:28,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1155 transitions. [2024-11-27 23:24:28,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-27 23:24:28,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:28,100 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:28,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:24:28,100 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:28,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:28,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1165384446, now seen corresponding path program 1 times [2024-11-27 23:24:28,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:28,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303940343] [2024-11-27 23:24:28,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:28,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:29,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:29,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303940343] [2024-11-27 23:24:29,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303940343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:29,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:29,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:24:29,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190382900] [2024-11-27 23:24:29,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:29,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:29,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:29,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:29,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:29,097 INFO L87 Difference]: Start difference. First operand 775 states and 1155 transitions. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:30,027 INFO L93 Difference]: Finished difference Result 1967 states and 2935 transitions. [2024-11-27 23:24:30,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:24:30,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 264 [2024-11-27 23:24:30,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:30,033 INFO L225 Difference]: With dead ends: 1967 [2024-11-27 23:24:30,033 INFO L226 Difference]: Without dead ends: 775 [2024-11-27 23:24:30,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:24:30,039 INFO L435 NwaCegarLoop]: 1249 mSDtfsCounter, 2208 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:30,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2208 Valid, 3359 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:24:30,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-27 23:24:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2024-11-27 23:24:30,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 766 states have (on average 1.4882506527415145) internal successors, (1140), 766 states have internal predecessors, (1140), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:30,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1154 transitions. [2024-11-27 23:24:30,063 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1154 transitions. Word has length 264 [2024-11-27 23:24:30,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:30,063 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1154 transitions. [2024-11-27 23:24:30,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1154 transitions. [2024-11-27 23:24:30,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-27 23:24:30,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:30,068 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:30,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:24:30,068 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:30,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:30,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1084642750, now seen corresponding path program 1 times [2024-11-27 23:24:30,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:30,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784194923] [2024-11-27 23:24:30,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:30,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:31,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:31,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784194923] [2024-11-27 23:24:31,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784194923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:31,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:31,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:24:31,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137236210] [2024-11-27 23:24:31,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:31,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:31,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:31,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:31,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:31,108 INFO L87 Difference]: Start difference. First operand 775 states and 1154 transitions. Second operand has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:31,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:31,862 INFO L93 Difference]: Finished difference Result 1432 states and 2132 transitions. [2024-11-27 23:24:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:31,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 265 [2024-11-27 23:24:31,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:31,866 INFO L225 Difference]: With dead ends: 1432 [2024-11-27 23:24:31,867 INFO L226 Difference]: Without dead ends: 775 [2024-11-27 23:24:31,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:31,870 INFO L435 NwaCegarLoop]: 839 mSDtfsCounter, 1096 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:31,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 1691 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:24:31,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-27 23:24:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2024-11-27 23:24:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 766 states have (on average 1.4869451697127938) internal successors, (1139), 766 states have internal predecessors, (1139), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:31,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1153 transitions. [2024-11-27 23:24:31,909 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1153 transitions. Word has length 265 [2024-11-27 23:24:31,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:31,910 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1153 transitions. [2024-11-27 23:24:31,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1153 transitions. [2024-11-27 23:24:31,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-27 23:24:31,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:31,914 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:31,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:24:31,915 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:31,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:31,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1008853027, now seen corresponding path program 1 times [2024-11-27 23:24:31,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:31,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147176485] [2024-11-27 23:24:31,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:31,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:32,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:32,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147176485] [2024-11-27 23:24:32,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147176485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:32,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:32,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:32,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844960146] [2024-11-27 23:24:32,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:32,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:32,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:32,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:32,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:32,787 INFO L87 Difference]: Start difference. First operand 775 states and 1153 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:32,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:32,862 INFO L93 Difference]: Finished difference Result 1434 states and 2133 transitions. [2024-11-27 23:24:32,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:32,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 266 [2024-11-27 23:24:32,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:32,867 INFO L225 Difference]: With dead ends: 1434 [2024-11-27 23:24:32,867 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 23:24:32,868 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 [2024-11-27 23:24:32,869 INFO L435 NwaCegarLoop]: 1149 mSDtfsCounter, 0 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3437 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 [2024-11-27 23:24:32,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3437 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:24:32,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 23:24:32,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2024-11-27 23:24:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 768 states have (on average 1.4856770833333333) internal successors, (1141), 768 states have internal predecessors, (1141), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1155 transitions. [2024-11-27 23:24:32,897 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1155 transitions. Word has length 266 [2024-11-27 23:24:32,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:32,897 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1155 transitions. [2024-11-27 23:24:32,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:32,898 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1155 transitions. [2024-11-27 23:24:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-27 23:24:32,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:32,903 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:32,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:24:32,903 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:32,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:32,904 INFO L85 PathProgramCache]: Analyzing trace with hash 111708241, now seen corresponding path program 1 times [2024-11-27 23:24:32,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:32,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990023286] [2024-11-27 23:24:32,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:32,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:33,868 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:33,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:33,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990023286] [2024-11-27 23:24:33,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990023286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:33,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:33,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:33,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590580186] [2024-11-27 23:24:33,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:33,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:33,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:33,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:33,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:33,875 INFO L87 Difference]: Start difference. First operand 777 states and 1155 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:34,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:34,062 INFO L93 Difference]: Finished difference Result 1436 states and 2134 transitions. [2024-11-27 23:24:34,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:34,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 267 [2024-11-27 23:24:34,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:34,067 INFO L225 Difference]: With dead ends: 1436 [2024-11-27 23:24:34,067 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 23:24:34,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:34,071 INFO L435 NwaCegarLoop]: 1097 mSDtfsCounter, 990 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:34,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 2196 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:24:34,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 23:24:34,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2024-11-27 23:24:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 768 states have (on average 1.4830729166666667) internal successors, (1139), 768 states have internal predecessors, (1139), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1153 transitions. [2024-11-27 23:24:34,100 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1153 transitions. Word has length 267 [2024-11-27 23:24:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:34,101 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1153 transitions. [2024-11-27 23:24:34,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1153 transitions. [2024-11-27 23:24:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-27 23:24:34,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:34,109 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:34,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:24:34,109 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:34,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:34,110 INFO L85 PathProgramCache]: Analyzing trace with hash 366792948, now seen corresponding path program 1 times [2024-11-27 23:24:34,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:34,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294357281] [2024-11-27 23:24:34,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:34,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:34,877 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:34,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:34,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294357281] [2024-11-27 23:24:34,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294357281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:34,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:34,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:24:34,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038558595] [2024-11-27 23:24:34,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:34,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:34,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:34,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:34,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:34,879 INFO L87 Difference]: Start difference. First operand 777 states and 1153 transitions. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:35,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:35,101 INFO L93 Difference]: Finished difference Result 1436 states and 2130 transitions. [2024-11-27 23:24:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:35,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 269 [2024-11-27 23:24:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:35,105 INFO L225 Difference]: With dead ends: 1436 [2024-11-27 23:24:35,105 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 23:24:35,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:35,107 INFO L435 NwaCegarLoop]: 1097 mSDtfsCounter, 2111 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:35,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 2196 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:24:35,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 23:24:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2024-11-27 23:24:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 768 states have (on average 1.4817708333333333) internal successors, (1138), 768 states have internal predecessors, (1138), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:35,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1152 transitions. [2024-11-27 23:24:35,131 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1152 transitions. Word has length 269 [2024-11-27 23:24:35,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:35,131 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1152 transitions. [2024-11-27 23:24:35,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1152 transitions. [2024-11-27 23:24:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-27 23:24:35,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:35,136 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:35,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:24:35,136 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:35,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:35,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1540089308, now seen corresponding path program 1 times [2024-11-27 23:24:35,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:35,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243295457] [2024-11-27 23:24:35,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:35,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:36,021 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:36,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:36,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243295457] [2024-11-27 23:24:36,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243295457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:36,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:36,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:24:36,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276935390] [2024-11-27 23:24:36,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:36,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:36,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:36,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:36,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:36,024 INFO L87 Difference]: Start difference. First operand 777 states and 1152 transitions. Second operand has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:36,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:36,214 INFO L93 Difference]: Finished difference Result 1436 states and 2128 transitions. [2024-11-27 23:24:36,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:36,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 270 [2024-11-27 23:24:36,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:36,218 INFO L225 Difference]: With dead ends: 1436 [2024-11-27 23:24:36,219 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 23:24:36,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:36,220 INFO L435 NwaCegarLoop]: 1097 mSDtfsCounter, 1089 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:36,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 2207 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:24:36,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 23:24:36,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2024-11-27 23:24:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 768 states have (on average 1.48046875) internal successors, (1137), 768 states have internal predecessors, (1137), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:36,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1151 transitions. [2024-11-27 23:24:36,243 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1151 transitions. Word has length 270 [2024-11-27 23:24:36,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:36,244 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1151 transitions. [2024-11-27 23:24:36,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1151 transitions. [2024-11-27 23:24:36,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-27 23:24:36,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:36,249 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:36,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:24:36,249 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:36,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:36,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1332572220, now seen corresponding path program 1 times [2024-11-27 23:24:36,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:36,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968305171] [2024-11-27 23:24:36,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:36,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:37,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:37,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968305171] [2024-11-27 23:24:37,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968305171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:37,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:37,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:24:37,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051233240] [2024-11-27 23:24:37,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:37,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:37,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:37,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:37,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:37,095 INFO L87 Difference]: Start difference. First operand 777 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:37,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:37,278 INFO L93 Difference]: Finished difference Result 1436 states and 2126 transitions. [2024-11-27 23:24:37,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:37,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 271 [2024-11-27 23:24:37,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:37,283 INFO L225 Difference]: With dead ends: 1436 [2024-11-27 23:24:37,283 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 23:24:37,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:37,284 INFO L435 NwaCegarLoop]: 1097 mSDtfsCounter, 1085 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:37,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 2207 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:24:37,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 23:24:37,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2024-11-27 23:24:37,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 768 states have (on average 1.4791666666666667) internal successors, (1136), 768 states have internal predecessors, (1136), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:37,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1150 transitions. [2024-11-27 23:24:37,308 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1150 transitions. Word has length 271 [2024-11-27 23:24:37,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:37,309 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1150 transitions. [2024-11-27 23:24:37,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1150 transitions. [2024-11-27 23:24:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-27 23:24:37,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:37,314 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:37,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:24:37,315 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:37,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:37,315 INFO L85 PathProgramCache]: Analyzing trace with hash 20683669, now seen corresponding path program 1 times [2024-11-27 23:24:37,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:37,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169235140] [2024-11-27 23:24:37,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:37,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:38,597 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:38,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:38,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169235140] [2024-11-27 23:24:38,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169235140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:38,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:38,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:38,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596347159] [2024-11-27 23:24:38,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:38,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:38,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:38,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:38,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:38,600 INFO L87 Difference]: Start difference. First operand 777 states and 1150 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:38,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:38,776 INFO L93 Difference]: Finished difference Result 1436 states and 2124 transitions. [2024-11-27 23:24:38,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:38,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 272 [2024-11-27 23:24:38,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:38,781 INFO L225 Difference]: With dead ends: 1436 [2024-11-27 23:24:38,781 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 23:24:38,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:38,782 INFO L435 NwaCegarLoop]: 1097 mSDtfsCounter, 943 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:38,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 2196 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:24:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 23:24:38,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2024-11-27 23:24:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 768 states have (on average 1.4778645833333333) internal successors, (1135), 768 states have internal predecessors, (1135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:24:38,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1149 transitions. [2024-11-27 23:24:38,805 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1149 transitions. Word has length 272 [2024-11-27 23:24:38,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:38,806 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1149 transitions. [2024-11-27 23:24:38,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1149 transitions. [2024-11-27 23:24:38,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-27 23:24:38,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:38,811 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:38,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:24:38,811 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:38,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:38,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1033648512, now seen corresponding path program 1 times [2024-11-27 23:24:38,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:38,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570729369] [2024-11-27 23:24:38,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:38,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:40,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:40,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570729369] [2024-11-27 23:24:40,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570729369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:40,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:40,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:24:40,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890786421] [2024-11-27 23:24:40,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:40,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:24:40,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:40,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:24:40,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:40,600 INFO L87 Difference]: Start difference. First operand 777 states and 1149 transitions. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:41,253 INFO L93 Difference]: Finished difference Result 2180 states and 3224 transitions. [2024-11-27 23:24:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:24:41,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 273 [2024-11-27 23:24:41,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:41,259 INFO L225 Difference]: With dead ends: 2180 [2024-11-27 23:24:41,259 INFO L226 Difference]: Without dead ends: 1421 [2024-11-27 23:24:41,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:24:41,262 INFO L435 NwaCegarLoop]: 1163 mSDtfsCounter, 1071 mSDsluCounter, 4307 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:41,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 5470 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:24:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-27 23:24:41,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 836. [2024-11-27 23:24:41,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 825 states have (on average 1.4763636363636363) internal successors, (1218), 825 states have internal predecessors, (1218), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:41,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1236 transitions. [2024-11-27 23:24:41,293 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1236 transitions. Word has length 273 [2024-11-27 23:24:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:41,294 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1236 transitions. [2024-11-27 23:24:41,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:41,294 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1236 transitions. [2024-11-27 23:24:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-27 23:24:41,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:41,300 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:41,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:24:41,300 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:41,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:41,301 INFO L85 PathProgramCache]: Analyzing trace with hash -2106682868, now seen corresponding path program 1 times [2024-11-27 23:24:41,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:41,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115462462] [2024-11-27 23:24:41,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:41,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:43,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:43,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115462462] [2024-11-27 23:24:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115462462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:43,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:43,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:24:43,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173302998] [2024-11-27 23:24:43,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:43,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:24:43,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:43,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:24:43,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:24:43,572 INFO L87 Difference]: Start difference. First operand 836 states and 1236 transitions. Second operand has 7 states, 7 states have (on average 34.57142857142857) internal successors, (242), 7 states have internal predecessors, (242), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:43,879 INFO L93 Difference]: Finished difference Result 1503 states and 2221 transitions. [2024-11-27 23:24:43,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:24:43,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.57142857142857) internal successors, (242), 7 states have internal predecessors, (242), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 274 [2024-11-27 23:24:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:43,884 INFO L225 Difference]: With dead ends: 1503 [2024-11-27 23:24:43,884 INFO L226 Difference]: Without dead ends: 844 [2024-11-27 23:24:43,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:24:43,886 INFO L435 NwaCegarLoop]: 1122 mSDtfsCounter, 1053 mSDsluCounter, 4386 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 5508 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:43,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 5508 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:24:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-11-27 23:24:43,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 841. [2024-11-27 23:24:43,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 830 states have (on average 1.4746987951807229) internal successors, (1224), 830 states have internal predecessors, (1224), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1242 transitions. [2024-11-27 23:24:43,914 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1242 transitions. Word has length 274 [2024-11-27 23:24:43,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:43,915 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1242 transitions. [2024-11-27 23:24:43,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.57142857142857) internal successors, (242), 7 states have internal predecessors, (242), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:43,916 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1242 transitions. [2024-11-27 23:24:43,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-27 23:24:43,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:43,921 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:43,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:24:43,922 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:43,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:43,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1414172572, now seen corresponding path program 1 times [2024-11-27 23:24:43,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:43,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109722643] [2024-11-27 23:24:43,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:43,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:44,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:44,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109722643] [2024-11-27 23:24:44,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109722643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:44,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:44,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:24:44,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646623567] [2024-11-27 23:24:44,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:44,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:24:44,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:44,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:24:44,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:44,595 INFO L87 Difference]: Start difference. First operand 841 states and 1242 transitions. Second operand has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:45,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:45,685 INFO L93 Difference]: Finished difference Result 1509 states and 2227 transitions. [2024-11-27 23:24:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:24:45,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 275 [2024-11-27 23:24:45,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:45,689 INFO L225 Difference]: With dead ends: 1509 [2024-11-27 23:24:45,689 INFO L226 Difference]: Without dead ends: 845 [2024-11-27 23:24:45,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:45,691 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 1122 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:45,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 3323 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:24:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-27 23:24:45,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 843. [2024-11-27 23:24:45,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 832 states have (on average 1.4735576923076923) internal successors, (1226), 832 states have internal predecessors, (1226), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1244 transitions. [2024-11-27 23:24:45,718 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1244 transitions. Word has length 275 [2024-11-27 23:24:45,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:45,718 INFO L471 AbstractCegarLoop]: Abstraction has 843 states and 1244 transitions. [2024-11-27 23:24:45,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:45,719 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1244 transitions. [2024-11-27 23:24:45,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-27 23:24:45,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:45,723 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:45,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:24:45,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:45,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash -715069134, now seen corresponding path program 1 times [2024-11-27 23:24:45,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:45,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352660772] [2024-11-27 23:24:45,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:45,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:46,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:46,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352660772] [2024-11-27 23:24:46,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352660772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:46,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:46,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:46,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104480] [2024-11-27 23:24:46,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:46,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:46,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:46,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:46,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:46,237 INFO L87 Difference]: Start difference. First operand 843 states and 1244 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:46,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:46,342 INFO L93 Difference]: Finished difference Result 1511 states and 2228 transitions. [2024-11-27 23:24:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:46,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 275 [2024-11-27 23:24:46,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:46,346 INFO L225 Difference]: With dead ends: 1511 [2024-11-27 23:24:46,346 INFO L226 Difference]: Without dead ends: 845 [2024-11-27 23:24:46,347 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 [2024-11-27 23:24:46,348 INFO L435 NwaCegarLoop]: 1143 mSDtfsCounter, 0 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:46,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3404 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:24:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-27 23:24:46,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-11-27 23:24:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 834 states have (on average 1.4724220623501199) internal successors, (1228), 834 states have internal predecessors, (1228), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1246 transitions. [2024-11-27 23:24:46,373 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1246 transitions. Word has length 275 [2024-11-27 23:24:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:46,374 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1246 transitions. [2024-11-27 23:24:46,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:46,374 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1246 transitions. [2024-11-27 23:24:46,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-27 23:24:46,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:46,377 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:46,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:24:46,377 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:46,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:46,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1325064187, now seen corresponding path program 1 times [2024-11-27 23:24:46,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:46,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505052678] [2024-11-27 23:24:46,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:46,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:47,165 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:47,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:47,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505052678] [2024-11-27 23:24:47,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505052678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:47,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:47,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:24:47,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606769630] [2024-11-27 23:24:47,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:47,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:24:47,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:47,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:24:47,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:24:47,169 INFO L87 Difference]: Start difference. First operand 845 states and 1246 transitions. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:47,259 INFO L93 Difference]: Finished difference Result 1511 states and 2227 transitions. [2024-11-27 23:24:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:24:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 276 [2024-11-27 23:24:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:47,263 INFO L225 Difference]: With dead ends: 1511 [2024-11-27 23:24:47,264 INFO L226 Difference]: Without dead ends: 843 [2024-11-27 23:24:47,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:47,265 INFO L435 NwaCegarLoop]: 1126 mSDtfsCounter, 1039 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:47,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 2261 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:24:47,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-11-27 23:24:47,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2024-11-27 23:24:47,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 832 states have (on average 1.4723557692307692) internal successors, (1225), 832 states have internal predecessors, (1225), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:47,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1243 transitions. [2024-11-27 23:24:47,294 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1243 transitions. Word has length 276 [2024-11-27 23:24:47,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:47,295 INFO L471 AbstractCegarLoop]: Abstraction has 843 states and 1243 transitions. [2024-11-27 23:24:47,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1243 transitions. [2024-11-27 23:24:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-27 23:24:47,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:47,298 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:47,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:24:47,298 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:47,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1627796969, now seen corresponding path program 1 times [2024-11-27 23:24:47,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:47,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446320479] [2024-11-27 23:24:47,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:47,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:48,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:48,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446320479] [2024-11-27 23:24:48,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446320479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:48,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:48,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:24:48,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228644326] [2024-11-27 23:24:48,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:48,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:48,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:48,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:48,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:48,748 INFO L87 Difference]: Start difference. First operand 843 states and 1243 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:49,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:49,640 INFO L93 Difference]: Finished difference Result 1513 states and 2229 transitions. [2024-11-27 23:24:49,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:24:49,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 276 [2024-11-27 23:24:49,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:49,645 INFO L225 Difference]: With dead ends: 1513 [2024-11-27 23:24:49,645 INFO L226 Difference]: Without dead ends: 847 [2024-11-27 23:24:49,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:49,647 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 1026 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:49,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 2524 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:24:49,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-27 23:24:49,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 845. [2024-11-27 23:24:49,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 834 states have (on average 1.4712230215827338) internal successors, (1227), 834 states have internal predecessors, (1227), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1245 transitions. [2024-11-27 23:24:49,678 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1245 transitions. Word has length 276 [2024-11-27 23:24:49,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:49,679 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1245 transitions. [2024-11-27 23:24:49,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1245 transitions. [2024-11-27 23:24:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-27 23:24:49,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:49,683 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:49,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:24:49,683 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:49,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:49,684 INFO L85 PathProgramCache]: Analyzing trace with hash -804876490, now seen corresponding path program 1 times [2024-11-27 23:24:49,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:49,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789143777] [2024-11-27 23:24:49,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:49,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:50,807 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:50,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789143777] [2024-11-27 23:24:50,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789143777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:50,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:50,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:24:50,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176909432] [2024-11-27 23:24:50,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:50,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:50,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:50,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:50,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:50,809 INFO L87 Difference]: Start difference. First operand 845 states and 1245 transitions. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:51,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:51,654 INFO L93 Difference]: Finished difference Result 1517 states and 2233 transitions. [2024-11-27 23:24:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:24:51,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 277 [2024-11-27 23:24:51,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:51,658 INFO L225 Difference]: With dead ends: 1517 [2024-11-27 23:24:51,658 INFO L226 Difference]: Without dead ends: 849 [2024-11-27 23:24:51,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:51,660 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 1068 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:51,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 2524 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:24:51,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-27 23:24:51,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 847. [2024-11-27 23:24:51,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 836 states have (on average 1.4700956937799043) internal successors, (1229), 836 states have internal predecessors, (1229), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:51,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1247 transitions. [2024-11-27 23:24:51,683 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1247 transitions. Word has length 277 [2024-11-27 23:24:51,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:51,684 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1247 transitions. [2024-11-27 23:24:51,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:51,684 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1247 transitions. [2024-11-27 23:24:51,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-27 23:24:51,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:51,686 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:51,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:24:51,687 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:51,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:51,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1970734911, now seen corresponding path program 1 times [2024-11-27 23:24:51,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:51,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998209529] [2024-11-27 23:24:51,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:51,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:52,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:52,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998209529] [2024-11-27 23:24:52,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998209529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:52,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:52,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:24:52,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474515792] [2024-11-27 23:24:52,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:52,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:24:52,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:52,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:24:52,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:24:52,906 INFO L87 Difference]: Start difference. First operand 847 states and 1247 transitions. Second operand has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:53,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:53,962 INFO L93 Difference]: Finished difference Result 1534 states and 2252 transitions. [2024-11-27 23:24:53,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:24:53,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 278 [2024-11-27 23:24:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:53,966 INFO L225 Difference]: With dead ends: 1534 [2024-11-27 23:24:53,966 INFO L226 Difference]: Without dead ends: 864 [2024-11-27 23:24:53,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:24:53,970 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 1039 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 3357 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:53,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 3357 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:24:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-27 23:24:53,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 845. [2024-11-27 23:24:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 834 states have (on average 1.4700239808153477) internal successors, (1226), 834 states have internal predecessors, (1226), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1244 transitions. [2024-11-27 23:24:53,992 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1244 transitions. Word has length 278 [2024-11-27 23:24:53,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:53,992 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1244 transitions. [2024-11-27 23:24:53,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:24:53,993 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1244 transitions. [2024-11-27 23:24:53,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-27 23:24:53,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:53,995 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:53,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:24:53,996 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:53,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:53,997 INFO L85 PathProgramCache]: Analyzing trace with hash -340615622, now seen corresponding path program 1 times [2024-11-27 23:24:53,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:53,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523636152] [2024-11-27 23:24:53,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:53,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:55,436 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:55,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:55,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523636152] [2024-11-27 23:24:55,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523636152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:55,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:55,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:24:55,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147960181] [2024-11-27 23:24:55,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:55,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:24:55,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:55,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:24:55,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:55,439 INFO L87 Difference]: Start difference. First operand 845 states and 1244 transitions. Second operand has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:55,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:55,503 INFO L93 Difference]: Finished difference Result 1683 states and 2470 transitions. [2024-11-27 23:24:55,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:24:55,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 278 [2024-11-27 23:24:55,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:55,509 INFO L225 Difference]: With dead ends: 1683 [2024-11-27 23:24:55,509 INFO L226 Difference]: Without dead ends: 1015 [2024-11-27 23:24:55,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:24:55,511 INFO L435 NwaCegarLoop]: 1137 mSDtfsCounter, 147 mSDsluCounter, 3402 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 4539 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:55,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 4539 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:24:55,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-11-27 23:24:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1013. [2024-11-27 23:24:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1002 states have (on average 1.464071856287425) internal successors, (1467), 1002 states have internal predecessors, (1467), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:24:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1485 transitions. [2024-11-27 23:24:55,537 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1485 transitions. Word has length 278 [2024-11-27 23:24:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:55,538 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1485 transitions. [2024-11-27 23:24:55,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:24:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1485 transitions. [2024-11-27 23:24:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-27 23:24:55,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:55,541 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:55,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:24:55,541 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:55,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:55,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1060261471, now seen corresponding path program 1 times [2024-11-27 23:24:55,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:55,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976110117] [2024-11-27 23:24:55,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:55,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:24:57,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:57,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976110117] [2024-11-27 23:24:57,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976110117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:57,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:24:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933121413] [2024-11-27 23:24:57,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:57,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:24:57,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:57,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:24:57,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:24:57,605 INFO L87 Difference]: Start difference. First operand 1013 states and 1485 transitions. Second operand has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 11 states have internal predecessors, (247), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:24:59,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:59,829 INFO L93 Difference]: Finished difference Result 2925 states and 4280 transitions. [2024-11-27 23:24:59,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:24:59,830 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 11 states have internal predecessors, (247), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 279 [2024-11-27 23:24:59,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:59,837 INFO L225 Difference]: With dead ends: 2925 [2024-11-27 23:24:59,837 INFO L226 Difference]: Without dead ends: 2089 [2024-11-27 23:24:59,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:24:59,843 INFO L435 NwaCegarLoop]: 934 mSDtfsCounter, 2199 mSDsluCounter, 7280 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 8214 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:59,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 8214 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:24:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2024-11-27 23:24:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1319. [2024-11-27 23:24:59,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1295 states have (on average 1.4594594594594594) internal successors, (1890), 1295 states have internal predecessors, (1890), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 23:24:59,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1934 transitions. [2024-11-27 23:24:59,896 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1934 transitions. Word has length 279 [2024-11-27 23:24:59,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:59,897 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1934 transitions. [2024-11-27 23:24:59,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.454545454545453) internal successors, (247), 11 states have internal predecessors, (247), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:24:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1934 transitions. [2024-11-27 23:24:59,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-27 23:24:59,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:59,901 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:59,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:24:59,902 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:59,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:59,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1364522175, now seen corresponding path program 1 times [2024-11-27 23:24:59,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:59,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23169901] [2024-11-27 23:24:59,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:59,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:00,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:00,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23169901] [2024-11-27 23:25:00,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23169901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:00,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:00,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:00,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622388051] [2024-11-27 23:25:00,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:00,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:00,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:00,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:00,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:00,666 INFO L87 Difference]: Start difference. First operand 1319 states and 1934 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:01,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:01,056 INFO L93 Difference]: Finished difference Result 2409 states and 3524 transitions. [2024-11-27 23:25:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:01,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 279 [2024-11-27 23:25:01,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:01,061 INFO L225 Difference]: With dead ends: 2409 [2024-11-27 23:25:01,061 INFO L226 Difference]: Without dead ends: 1261 [2024-11-27 23:25:01,063 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 [2024-11-27 23:25:01,064 INFO L435 NwaCegarLoop]: 1264 mSDtfsCounter, 68 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:01,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 3375 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:25:01,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-11-27 23:25:01,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1102. [2024-11-27 23:25:01,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1087 states have (on average 1.4609015639374425) internal successors, (1588), 1087 states have internal predecessors, (1588), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 23:25:01,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1614 transitions. [2024-11-27 23:25:01,090 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1614 transitions. Word has length 279 [2024-11-27 23:25:01,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:01,091 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1614 transitions. [2024-11-27 23:25:01,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:01,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1614 transitions. [2024-11-27 23:25:01,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-27 23:25:01,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:01,094 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:01,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:25:01,094 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:01,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:01,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1230750161, now seen corresponding path program 1 times [2024-11-27 23:25:01,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:01,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844132446] [2024-11-27 23:25:01,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:01,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:02,974 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:02,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844132446] [2024-11-27 23:25:02,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844132446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:02,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:02,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:25:02,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216390158] [2024-11-27 23:25:02,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:02,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:25:02,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:02,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:25:02,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:25:02,978 INFO L87 Difference]: Start difference. First operand 1102 states and 1614 transitions. Second operand has 8 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:03,274 INFO L93 Difference]: Finished difference Result 3692 states and 5402 transitions. [2024-11-27 23:25:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:25:03,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 280 [2024-11-27 23:25:03,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:03,282 INFO L225 Difference]: With dead ends: 3692 [2024-11-27 23:25:03,283 INFO L226 Difference]: Without dead ends: 2838 [2024-11-27 23:25:03,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:25:03,286 INFO L435 NwaCegarLoop]: 1872 mSDtfsCounter, 3584 mSDsluCounter, 7782 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3598 SdHoareTripleChecker+Valid, 9654 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:03,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3598 Valid, 9654 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:25:03,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2024-11-27 23:25:03,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 1354. [2024-11-27 23:25:03,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1329 states have (on average 1.4537246049661399) internal successors, (1932), 1329 states have internal predecessors, (1932), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:25:03,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1978 transitions. [2024-11-27 23:25:03,326 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1978 transitions. Word has length 280 [2024-11-27 23:25:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:03,327 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1978 transitions. [2024-11-27 23:25:03,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1978 transitions. [2024-11-27 23:25:03,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-27 23:25:03,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:03,330 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:03,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:25:03,330 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:03,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:03,331 INFO L85 PathProgramCache]: Analyzing trace with hash 751567309, now seen corresponding path program 1 times [2024-11-27 23:25:03,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:03,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205029519] [2024-11-27 23:25:03,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:03,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:04,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:04,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205029519] [2024-11-27 23:25:04,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205029519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:04,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:04,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:04,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102689557] [2024-11-27 23:25:04,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:04,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:04,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:04,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:04,200 INFO L87 Difference]: Start difference. First operand 1354 states and 1978 transitions. Second operand has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:05,531 INFO L93 Difference]: Finished difference Result 3003 states and 4391 transitions. [2024-11-27 23:25:05,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:25:05,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 280 [2024-11-27 23:25:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:05,538 INFO L225 Difference]: With dead ends: 3003 [2024-11-27 23:25:05,538 INFO L226 Difference]: Without dead ends: 2167 [2024-11-27 23:25:05,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:25:05,540 INFO L435 NwaCegarLoop]: 1415 mSDtfsCounter, 1933 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 5046 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:05,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 5046 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:25:05,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2024-11-27 23:25:05,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1514. [2024-11-27 23:25:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1480 states have (on average 1.4533783783783785) internal successors, (2151), 1480 states have internal predecessors, (2151), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 23:25:05,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2215 transitions. [2024-11-27 23:25:05,580 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2215 transitions. Word has length 280 [2024-11-27 23:25:05,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:05,581 INFO L471 AbstractCegarLoop]: Abstraction has 1514 states and 2215 transitions. [2024-11-27 23:25:05,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:05,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2215 transitions. [2024-11-27 23:25:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-27 23:25:05,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:05,585 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:05,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:25:05,585 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:05,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash 298139556, now seen corresponding path program 1 times [2024-11-27 23:25:05,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:05,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775571869] [2024-11-27 23:25:05,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:05,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:07,543 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:07,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:07,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775571869] [2024-11-27 23:25:07,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775571869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:07,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:07,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:25:07,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468651917] [2024-11-27 23:25:07,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:07,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:25:07,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:07,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:25:07,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:25:07,545 INFO L87 Difference]: Start difference. First operand 1514 states and 2215 transitions. Second operand has 11 states, 11 states have (on average 22.636363636363637) internal successors, (249), 11 states have internal predecessors, (249), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:08,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:08,965 INFO L93 Difference]: Finished difference Result 3521 states and 5157 transitions. [2024-11-27 23:25:08,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:25:08,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.636363636363637) internal successors, (249), 11 states have internal predecessors, (249), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 281 [2024-11-27 23:25:08,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:08,972 INFO L225 Difference]: With dead ends: 3521 [2024-11-27 23:25:08,972 INFO L226 Difference]: Without dead ends: 2573 [2024-11-27 23:25:08,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:25:08,975 INFO L435 NwaCegarLoop]: 944 mSDtfsCounter, 2793 mSDsluCounter, 6466 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 7410 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:08,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2804 Valid, 7410 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:25:08,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2024-11-27 23:25:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 1746. [2024-11-27 23:25:09,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1746 states, 1700 states have (on average 1.4523529411764706) internal successors, (2469), 1700 states have internal predecessors, (2469), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 23:25:09,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2557 transitions. [2024-11-27 23:25:09,054 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2557 transitions. Word has length 281 [2024-11-27 23:25:09,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:09,054 INFO L471 AbstractCegarLoop]: Abstraction has 1746 states and 2557 transitions. [2024-11-27 23:25:09,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.636363636363637) internal successors, (249), 11 states have internal predecessors, (249), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2557 transitions. [2024-11-27 23:25:09,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-27 23:25:09,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:09,058 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:09,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 23:25:09,060 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:09,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:09,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1154161715, now seen corresponding path program 1 times [2024-11-27 23:25:09,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:09,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598450783] [2024-11-27 23:25:09,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:09,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:10,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:10,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598450783] [2024-11-27 23:25:10,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598450783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:10,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:10,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:25:10,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680700984] [2024-11-27 23:25:10,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:10,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:25:10,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:10,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:25:10,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:25:10,191 INFO L87 Difference]: Start difference. First operand 1746 states and 2557 transitions. Second operand has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:11,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:11,056 INFO L93 Difference]: Finished difference Result 2726 states and 3988 transitions. [2024-11-27 23:25:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:25:11,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 281 [2024-11-27 23:25:11,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:11,066 INFO L225 Difference]: With dead ends: 2726 [2024-11-27 23:25:11,066 INFO L226 Difference]: Without dead ends: 1762 [2024-11-27 23:25:11,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:25:11,068 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 2112 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:11,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 3289 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:25:11,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-27 23:25:11,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1522. [2024-11-27 23:25:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1488 states have (on average 1.448252688172043) internal successors, (2155), 1488 states have internal predecessors, (2155), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 23:25:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2219 transitions. [2024-11-27 23:25:11,133 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2219 transitions. Word has length 281 [2024-11-27 23:25:11,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:11,134 INFO L471 AbstractCegarLoop]: Abstraction has 1522 states and 2219 transitions. [2024-11-27 23:25:11,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 7 states have internal predecessors, (249), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2219 transitions. [2024-11-27 23:25:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-27 23:25:11,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:11,138 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:11,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 23:25:11,138 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:11,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:11,139 INFO L85 PathProgramCache]: Analyzing trace with hash -80728763, now seen corresponding path program 1 times [2024-11-27 23:25:11,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:11,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89751460] [2024-11-27 23:25:11,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:11,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:12,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:12,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89751460] [2024-11-27 23:25:12,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89751460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:12,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:12,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:25:12,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107132091] [2024-11-27 23:25:12,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:12,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:25:12,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:12,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:25:12,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:25:12,710 INFO L87 Difference]: Start difference. First operand 1522 states and 2219 transitions. Second operand has 8 states, 8 states have (on average 31.25) internal successors, (250), 8 states have internal predecessors, (250), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:12,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:12,969 INFO L93 Difference]: Finished difference Result 3459 states and 5041 transitions. [2024-11-27 23:25:12,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:25:12,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.25) internal successors, (250), 8 states have internal predecessors, (250), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 282 [2024-11-27 23:25:12,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:12,975 INFO L225 Difference]: With dead ends: 3459 [2024-11-27 23:25:12,975 INFO L226 Difference]: Without dead ends: 2499 [2024-11-27 23:25:12,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:25:12,977 INFO L435 NwaCegarLoop]: 1115 mSDtfsCounter, 2772 mSDsluCounter, 5542 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 6657 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:12,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 6657 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:25:12,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2499 states. [2024-11-27 23:25:13,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2499 to 1730. [2024-11-27 23:25:13,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1684 states have (on average 1.4471496437054632) internal successors, (2437), 1684 states have internal predecessors, (2437), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 23:25:13,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2525 transitions. [2024-11-27 23:25:13,018 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2525 transitions. Word has length 282 [2024-11-27 23:25:13,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:13,018 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2525 transitions. [2024-11-27 23:25:13,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.25) internal successors, (250), 8 states have internal predecessors, (250), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2525 transitions. [2024-11-27 23:25:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-27 23:25:13,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:13,022 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:13,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 23:25:13,023 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:13,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:13,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2135985766, now seen corresponding path program 1 times [2024-11-27 23:25:13,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:13,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790695467] [2024-11-27 23:25:13,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:13,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:14,369 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:14,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:14,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790695467] [2024-11-27 23:25:14,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790695467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:14,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:14,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:25:14,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812145251] [2024-11-27 23:25:14,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:14,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:25:14,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:14,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:25:14,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:25:14,371 INFO L87 Difference]: Start difference. First operand 1730 states and 2525 transitions. Second operand has 8 states, 8 states have (on average 31.25) internal successors, (250), 8 states have internal predecessors, (250), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:14,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:14,707 INFO L93 Difference]: Finished difference Result 3501 states and 5106 transitions. [2024-11-27 23:25:14,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:25:14,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.25) internal successors, (250), 8 states have internal predecessors, (250), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 282 [2024-11-27 23:25:14,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:14,715 INFO L225 Difference]: With dead ends: 3501 [2024-11-27 23:25:14,715 INFO L226 Difference]: Without dead ends: 2549 [2024-11-27 23:25:14,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:25:14,717 INFO L435 NwaCegarLoop]: 1922 mSDtfsCounter, 1853 mSDsluCounter, 8683 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 10605 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:14,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 10605 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:25:14,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2024-11-27 23:25:14,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 1820. [2024-11-27 23:25:14,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1768 states have (on average 1.4462669683257918) internal successors, (2557), 1768 states have internal predecessors, (2557), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-27 23:25:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2657 transitions. [2024-11-27 23:25:14,763 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2657 transitions. Word has length 282 [2024-11-27 23:25:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:14,763 INFO L471 AbstractCegarLoop]: Abstraction has 1820 states and 2657 transitions. [2024-11-27 23:25:14,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.25) internal successors, (250), 8 states have internal predecessors, (250), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2657 transitions. [2024-11-27 23:25:14,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-27 23:25:14,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:14,768 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:14,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 23:25:14,768 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:14,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:14,769 INFO L85 PathProgramCache]: Analyzing trace with hash 999124651, now seen corresponding path program 1 times [2024-11-27 23:25:14,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:14,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652043585] [2024-11-27 23:25:14,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:14,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:15,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:15,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652043585] [2024-11-27 23:25:15,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652043585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:15,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:15,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:25:15,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839809931] [2024-11-27 23:25:15,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:15,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:25:15,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:15,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:25:15,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:25:15,940 INFO L87 Difference]: Start difference. First operand 1820 states and 2657 transitions. Second operand has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:16,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:16,200 INFO L93 Difference]: Finished difference Result 3501 states and 5108 transitions. [2024-11-27 23:25:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:25:16,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 283 [2024-11-27 23:25:16,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:16,205 INFO L225 Difference]: With dead ends: 3501 [2024-11-27 23:25:16,205 INFO L226 Difference]: Without dead ends: 2517 [2024-11-27 23:25:16,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:25:16,207 INFO L435 NwaCegarLoop]: 1115 mSDtfsCounter, 2778 mSDsluCounter, 5530 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2786 SdHoareTripleChecker+Valid, 6645 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:16,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2786 Valid, 6645 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:25:16,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2024-11-27 23:25:16,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 1816. [2024-11-27 23:25:16,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1764 states have (on average 1.4450113378684808) internal successors, (2549), 1764 states have internal predecessors, (2549), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-27 23:25:16,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2649 transitions. [2024-11-27 23:25:16,251 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2649 transitions. Word has length 283 [2024-11-27 23:25:16,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:16,251 INFO L471 AbstractCegarLoop]: Abstraction has 1816 states and 2649 transitions. [2024-11-27 23:25:16,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:16,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2649 transitions. [2024-11-27 23:25:16,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-27 23:25:16,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:16,255 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:16,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 23:25:16,256 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:16,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:16,256 INFO L85 PathProgramCache]: Analyzing trace with hash -877449054, now seen corresponding path program 1 times [2024-11-27 23:25:16,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:16,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358536643] [2024-11-27 23:25:16,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:16,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:17,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:17,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358536643] [2024-11-27 23:25:17,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358536643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:17,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:17,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:25:17,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222191460] [2024-11-27 23:25:17,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:17,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:25:17,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:17,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:25:17,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:25:17,639 INFO L87 Difference]: Start difference. First operand 1816 states and 2649 transitions. Second operand has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:18,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:18,521 INFO L93 Difference]: Finished difference Result 2967 states and 4324 transitions. [2024-11-27 23:25:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:25:18,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 283 [2024-11-27 23:25:18,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:18,525 INFO L225 Difference]: With dead ends: 2967 [2024-11-27 23:25:18,525 INFO L226 Difference]: Without dead ends: 1864 [2024-11-27 23:25:18,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:25:18,527 INFO L435 NwaCegarLoop]: 825 mSDtfsCounter, 1104 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:18,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 3296 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:25:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2024-11-27 23:25:18,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1840. [2024-11-27 23:25:18,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1788 states have (on average 1.4323266219239374) internal successors, (2561), 1788 states have internal predecessors, (2561), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-27 23:25:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2661 transitions. [2024-11-27 23:25:18,565 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2661 transitions. Word has length 283 [2024-11-27 23:25:18,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:18,566 INFO L471 AbstractCegarLoop]: Abstraction has 1840 states and 2661 transitions. [2024-11-27 23:25:18,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 23:25:18,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2661 transitions. [2024-11-27 23:25:18,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-27 23:25:18,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:18,570 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:18,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-27 23:25:18,570 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:18,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1683256448, now seen corresponding path program 1 times [2024-11-27 23:25:18,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:18,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360076044] [2024-11-27 23:25:18,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:18,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:25:19,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:19,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360076044] [2024-11-27 23:25:19,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360076044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:19,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:19,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:19,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569411523] [2024-11-27 23:25:19,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:19,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:19,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:19,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:19,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:19,847 INFO L87 Difference]: Start difference. First operand 1840 states and 2661 transitions. Second operand has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:25:20,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:20,067 INFO L93 Difference]: Finished difference Result 3477 states and 5028 transitions. [2024-11-27 23:25:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:25:20,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 284 [2024-11-27 23:25:20,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:20,074 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:20,074 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:20,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:25:20,076 INFO L435 NwaCegarLoop]: 1120 mSDtfsCounter, 2083 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 4474 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:20,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 4474 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:25:20,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:20,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.4298679867986799) internal successors, (3466), 2424 states have internal predecessors, (3466), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3596 transitions. [2024-11-27 23:25:20,128 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3596 transitions. Word has length 284 [2024-11-27 23:25:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:20,128 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3596 transitions. [2024-11-27 23:25:20,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:25:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3596 transitions. [2024-11-27 23:25:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-11-27 23:25:20,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:20,136 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:20,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 23:25:20,136 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:20,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:20,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1079310616, now seen corresponding path program 1 times [2024-11-27 23:25:20,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:20,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852275208] [2024-11-27 23:25:20,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:20,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:21,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:21,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852275208] [2024-11-27 23:25:21,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852275208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:21,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:21,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:21,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548704085] [2024-11-27 23:25:21,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:21,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:21,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:21,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:21,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:21,426 INFO L87 Difference]: Start difference. First operand 2491 states and 3596 transitions. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:21,574 INFO L93 Difference]: Finished difference Result 3477 states and 5027 transitions. [2024-11-27 23:25:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:21,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 662 [2024-11-27 23:25:21,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:21,580 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:21,580 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:21,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:21,583 INFO L435 NwaCegarLoop]: 1092 mSDtfsCounter, 1000 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:21,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 2197 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:25:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:21,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.4294554455445545) internal successors, (3465), 2424 states have internal predecessors, (3465), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3595 transitions. [2024-11-27 23:25:21,634 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3595 transitions. Word has length 662 [2024-11-27 23:25:21,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:21,635 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3595 transitions. [2024-11-27 23:25:21,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:21,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3595 transitions. [2024-11-27 23:25:21,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-11-27 23:25:21,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:21,642 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:21,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-27 23:25:21,642 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:21,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:21,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1153137653, now seen corresponding path program 1 times [2024-11-27 23:25:21,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:21,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694252030] [2024-11-27 23:25:21,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:21,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:23,171 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:23,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:23,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694252030] [2024-11-27 23:25:23,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694252030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:23,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:23,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:23,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189829417] [2024-11-27 23:25:23,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:23,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:23,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:23,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:23,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:23,174 INFO L87 Difference]: Start difference. First operand 2491 states and 3595 transitions. Second operand has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:23,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:23,333 INFO L93 Difference]: Finished difference Result 3477 states and 5025 transitions. [2024-11-27 23:25:23,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:23,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 663 [2024-11-27 23:25:23,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:23,339 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:23,340 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:23,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:23,342 INFO L435 NwaCegarLoop]: 1092 mSDtfsCounter, 1830 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:23,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 2186 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:25:23,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:23,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:23,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.4290429042904291) internal successors, (3464), 2424 states have internal predecessors, (3464), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:23,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3594 transitions. [2024-11-27 23:25:23,396 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3594 transitions. Word has length 663 [2024-11-27 23:25:23,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:23,397 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3594 transitions. [2024-11-27 23:25:23,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:23,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3594 transitions. [2024-11-27 23:25:23,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-11-27 23:25:23,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:23,404 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:23,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-27 23:25:23,404 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:23,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:23,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1105064179, now seen corresponding path program 1 times [2024-11-27 23:25:23,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:23,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361559547] [2024-11-27 23:25:23,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:23,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:24,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:24,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361559547] [2024-11-27 23:25:24,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361559547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:24,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:24,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:24,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201358750] [2024-11-27 23:25:24,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:24,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:24,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:24,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:24,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:24,678 INFO L87 Difference]: Start difference. First operand 2491 states and 3594 transitions. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:25:25,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:25,178 INFO L93 Difference]: Finished difference Result 3477 states and 5023 transitions. [2024-11-27 23:25:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:25,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 664 [2024-11-27 23:25:25,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:25,185 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:25,185 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:25,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:25,188 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 1742 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:25,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 1658 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:25:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:25,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.4286303630363035) internal successors, (3463), 2424 states have internal predecessors, (3463), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3593 transitions. [2024-11-27 23:25:25,253 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3593 transitions. Word has length 664 [2024-11-27 23:25:25,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:25,254 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3593 transitions. [2024-11-27 23:25:25,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:25:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3593 transitions. [2024-11-27 23:25:25,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2024-11-27 23:25:25,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:25,262 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:25,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-27 23:25:25,263 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:25,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:25,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1545192182, now seen corresponding path program 1 times [2024-11-27 23:25:25,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:25,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065287198] [2024-11-27 23:25:25,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:25,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:26,686 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:26,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:26,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065287198] [2024-11-27 23:25:26,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065287198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:26,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:26,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:26,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015005541] [2024-11-27 23:25:26,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:26,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:26,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:26,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:26,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:26,689 INFO L87 Difference]: Start difference. First operand 2491 states and 3593 transitions. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:26,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:26,807 INFO L93 Difference]: Finished difference Result 3477 states and 5021 transitions. [2024-11-27 23:25:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:26,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 665 [2024-11-27 23:25:26,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:26,812 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:26,813 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:26,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:26,815 INFO L435 NwaCegarLoop]: 1091 mSDtfsCounter, 1730 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:26,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 2184 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:25:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:26,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:26,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.4282178217821782) internal successors, (3462), 2424 states have internal predecessors, (3462), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3592 transitions. [2024-11-27 23:25:26,867 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3592 transitions. Word has length 665 [2024-11-27 23:25:26,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:26,868 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3592 transitions. [2024-11-27 23:25:26,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3592 transitions. [2024-11-27 23:25:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-11-27 23:25:26,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:26,877 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:26,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-27 23:25:26,877 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:26,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash 27975239, now seen corresponding path program 1 times [2024-11-27 23:25:26,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:26,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237245653] [2024-11-27 23:25:26,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:26,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:28,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:28,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237245653] [2024-11-27 23:25:28,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237245653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:28,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:28,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:28,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036140708] [2024-11-27 23:25:28,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:28,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:28,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:28,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:28,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:28,404 INFO L87 Difference]: Start difference. First operand 2491 states and 3592 transitions. Second operand has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:28,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:28,525 INFO L93 Difference]: Finished difference Result 3477 states and 5019 transitions. [2024-11-27 23:25:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:28,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 666 [2024-11-27 23:25:28,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:28,531 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:28,531 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:28,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:28,534 INFO L435 NwaCegarLoop]: 1091 mSDtfsCounter, 934 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:28,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 2195 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:25:28,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:28,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.4278052805280528) internal successors, (3461), 2424 states have internal predecessors, (3461), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:28,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3591 transitions. [2024-11-27 23:25:28,585 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3591 transitions. Word has length 666 [2024-11-27 23:25:28,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:28,586 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3591 transitions. [2024-11-27 23:25:28,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:28,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3591 transitions. [2024-11-27 23:25:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-11-27 23:25:28,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:28,593 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:28,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-27 23:25:28,594 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:28,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:28,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1106959807, now seen corresponding path program 1 times [2024-11-27 23:25:28,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:28,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78724416] [2024-11-27 23:25:28,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:28,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:29,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:29,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78724416] [2024-11-27 23:25:29,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78724416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:29,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:29,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:29,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867113673] [2024-11-27 23:25:29,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:29,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:29,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:29,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:29,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:29,819 INFO L87 Difference]: Start difference. First operand 2491 states and 3591 transitions. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:25:30,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:30,318 INFO L93 Difference]: Finished difference Result 3477 states and 5017 transitions. [2024-11-27 23:25:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:30,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 667 [2024-11-27 23:25:30,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:30,324 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:30,325 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:30,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:30,327 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 854 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:30,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1665 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:25:30,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:30,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:30,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.4273927392739274) internal successors, (3460), 2424 states have internal predecessors, (3460), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3590 transitions. [2024-11-27 23:25:30,378 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3590 transitions. Word has length 667 [2024-11-27 23:25:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:30,378 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3590 transitions. [2024-11-27 23:25:30,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:25:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3590 transitions. [2024-11-27 23:25:30,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2024-11-27 23:25:30,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:30,385 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:30,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-27 23:25:30,386 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:30,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:30,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1517899506, now seen corresponding path program 1 times [2024-11-27 23:25:30,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:30,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083552082] [2024-11-27 23:25:30,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:30,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:33,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:33,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083552082] [2024-11-27 23:25:33,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083552082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:33,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:33,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:33,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966691744] [2024-11-27 23:25:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:33,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:33,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:33,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:33,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:33,115 INFO L87 Difference]: Start difference. First operand 2491 states and 3590 transitions. Second operand has 4 states, 4 states have (on average 150.25) internal successors, (601), 4 states have internal predecessors, (601), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:33,260 INFO L93 Difference]: Finished difference Result 3477 states and 5015 transitions. [2024-11-27 23:25:33,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:33,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 150.25) internal successors, (601), 4 states have internal predecessors, (601), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 668 [2024-11-27 23:25:33,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:33,265 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:33,266 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:33,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:33,268 INFO L435 NwaCegarLoop]: 1090 mSDtfsCounter, 834 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:33,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 2182 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:25:33,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:33,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.426980198019802) internal successors, (3459), 2424 states have internal predecessors, (3459), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3589 transitions. [2024-11-27 23:25:33,322 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3589 transitions. Word has length 668 [2024-11-27 23:25:33,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:33,323 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3589 transitions. [2024-11-27 23:25:33,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.25) internal successors, (601), 4 states have internal predecessors, (601), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:33,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3589 transitions. [2024-11-27 23:25:33,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2024-11-27 23:25:33,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:33,330 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:33,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-27 23:25:33,330 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:33,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:33,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1690157351, now seen corresponding path program 1 times [2024-11-27 23:25:33,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:33,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896556680] [2024-11-27 23:25:33,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:33,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:36,213 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:36,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:36,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896556680] [2024-11-27 23:25:36,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896556680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:36,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:36,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482081731] [2024-11-27 23:25:36,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:36,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:36,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:36,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:36,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:36,215 INFO L87 Difference]: Start difference. First operand 2491 states and 3589 transitions. Second operand has 4 states, 4 states have (on average 150.5) internal successors, (602), 4 states have internal predecessors, (602), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:36,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:36,331 INFO L93 Difference]: Finished difference Result 3477 states and 5013 transitions. [2024-11-27 23:25:36,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:36,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 150.5) internal successors, (602), 4 states have internal predecessors, (602), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 669 [2024-11-27 23:25:36,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:36,334 INFO L225 Difference]: With dead ends: 3477 [2024-11-27 23:25:36,334 INFO L226 Difference]: Without dead ends: 2491 [2024-11-27 23:25:36,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:36,336 INFO L435 NwaCegarLoop]: 1090 mSDtfsCounter, 777 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:36,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 2182 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:25:36,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-27 23:25:36,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2491. [2024-11-27 23:25:36,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2424 states have (on average 1.4265676567656767) internal successors, (3458), 2424 states have internal predecessors, (3458), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 23:25:36,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3588 transitions. [2024-11-27 23:25:36,386 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3588 transitions. Word has length 669 [2024-11-27 23:25:36,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:36,386 INFO L471 AbstractCegarLoop]: Abstraction has 2491 states and 3588 transitions. [2024-11-27 23:25:36,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.5) internal successors, (602), 4 states have internal predecessors, (602), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:36,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3588 transitions. [2024-11-27 23:25:36,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-11-27 23:25:36,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:36,394 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:36,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-27 23:25:36,394 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:36,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:36,395 INFO L85 PathProgramCache]: Analyzing trace with hash -138581158, now seen corresponding path program 1 times [2024-11-27 23:25:36,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:36,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813908297] [2024-11-27 23:25:36,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:39,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:39,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813908297] [2024-11-27 23:25:39,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813908297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:39,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:39,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:39,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960978513] [2024-11-27 23:25:39,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:39,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:39,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:39,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:39,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:39,895 INFO L87 Difference]: Start difference. First operand 2491 states and 3588 transitions. Second operand has 6 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:25:40,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:40,760 INFO L93 Difference]: Finished difference Result 5370 states and 7742 transitions. [2024-11-27 23:25:40,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:25:40,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 670 [2024-11-27 23:25:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:40,766 INFO L225 Difference]: With dead ends: 5370 [2024-11-27 23:25:40,766 INFO L226 Difference]: Without dead ends: 4384 [2024-11-27 23:25:40,768 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 [2024-11-27 23:25:40,769 INFO L435 NwaCegarLoop]: 1140 mSDtfsCounter, 632 mSDsluCounter, 4109 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 5249 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:40,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 5249 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:25:40,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4384 states. [2024-11-27 23:25:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4384 to 4133. [2024-11-27 23:25:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 4016 states have (on average 1.423804780876494) internal successors, (5718), 4016 states have internal predecessors, (5718), 115 states have call successors, (115), 1 states have call predecessors, (115), 1 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-27 23:25:40,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5948 transitions. [2024-11-27 23:25:40,906 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5948 transitions. Word has length 670 [2024-11-27 23:25:40,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:40,906 INFO L471 AbstractCegarLoop]: Abstraction has 4133 states and 5948 transitions. [2024-11-27 23:25:40,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:25:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5948 transitions. [2024-11-27 23:25:40,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-11-27 23:25:40,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:40,916 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:40,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-27 23:25:40,916 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:40,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:40,917 INFO L85 PathProgramCache]: Analyzing trace with hash -36890664, now seen corresponding path program 1 times [2024-11-27 23:25:40,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:40,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131948619] [2024-11-27 23:25:40,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:40,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-11-27 23:25:45,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131948619] [2024-11-27 23:25:45,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131948619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:45,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:45,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:25:45,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815028170] [2024-11-27 23:25:45,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:45,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:25:45,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:45,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:25:45,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:25:45,615 INFO L87 Difference]: Start difference. First operand 4133 states and 5948 transitions. Second operand has 8 states, 8 states have (on average 61.75) internal successors, (494), 8 states have internal predecessors, (494), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:47,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:47,679 INFO L93 Difference]: Finished difference Result 8823 states and 12699 transitions. [2024-11-27 23:25:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:25:47,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 61.75) internal successors, (494), 8 states have internal predecessors, (494), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 671 [2024-11-27 23:25:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:47,688 INFO L225 Difference]: With dead ends: 8823 [2024-11-27 23:25:47,688 INFO L226 Difference]: Without dead ends: 7459 [2024-11-27 23:25:47,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:25:47,691 INFO L435 NwaCegarLoop]: 1436 mSDtfsCounter, 2780 mSDsluCounter, 6480 mSDsCounter, 0 mSdLazyCounter, 2960 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2794 SdHoareTripleChecker+Valid, 7916 SdHoareTripleChecker+Invalid, 2961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:47,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2794 Valid, 7916 Invalid, 2961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2960 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:25:47,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7459 states. [2024-11-27 23:25:47,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7459 to 5177. [2024-11-27 23:25:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5010 states have (on average 1.4197604790419163) internal successors, (7113), 5010 states have internal predecessors, (7113), 165 states have call successors, (165), 1 states have call predecessors, (165), 1 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-27 23:25:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 7443 transitions. [2024-11-27 23:25:47,808 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 7443 transitions. Word has length 671 [2024-11-27 23:25:47,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:47,808 INFO L471 AbstractCegarLoop]: Abstraction has 5177 states and 7443 transitions. [2024-11-27 23:25:47,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 61.75) internal successors, (494), 8 states have internal predecessors, (494), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:47,808 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 7443 transitions. [2024-11-27 23:25:47,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-11-27 23:25:47,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:47,815 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:47,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-27 23:25:47,815 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:47,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash -45004714, now seen corresponding path program 1 times [2024-11-27 23:25:47,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:47,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707970102] [2024-11-27 23:25:47,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:47,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:51,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:51,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707970102] [2024-11-27 23:25:51,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707970102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:51,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:51,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:51,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823575622] [2024-11-27 23:25:51,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:51,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:51,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:51,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:51,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:51,974 INFO L87 Difference]: Start difference. First operand 5177 states and 7443 transitions. Second operand has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:52,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:52,993 INFO L93 Difference]: Finished difference Result 6190 states and 8906 transitions. [2024-11-27 23:25:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:25:52,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 671 [2024-11-27 23:25:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:52,999 INFO L225 Difference]: With dead ends: 6190 [2024-11-27 23:25:52,999 INFO L226 Difference]: Without dead ends: 5204 [2024-11-27 23:25:53,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:25:53,001 INFO L435 NwaCegarLoop]: 945 mSDtfsCounter, 1625 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 3647 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:53,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 3647 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:25:53,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2024-11-27 23:25:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 5178. [2024-11-27 23:25:53,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5178 states, 5011 states have (on average 1.4196767112352824) internal successors, (7114), 5011 states have internal predecessors, (7114), 165 states have call successors, (165), 1 states have call predecessors, (165), 1 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-27 23:25:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 7444 transitions. [2024-11-27 23:25:53,083 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 7444 transitions. Word has length 671 [2024-11-27 23:25:53,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:53,084 INFO L471 AbstractCegarLoop]: Abstraction has 5178 states and 7444 transitions. [2024-11-27 23:25:53,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:25:53,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 7444 transitions. [2024-11-27 23:25:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2024-11-27 23:25:53,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:53,095 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:53,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-27 23:25:53,095 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:53,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:53,096 INFO L85 PathProgramCache]: Analyzing trace with hash -354981871, now seen corresponding path program 1 times [2024-11-27 23:25:53,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:53,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152947735] [2024-11-27 23:25:53,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:53,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:58,331 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:25:58,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:58,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152947735] [2024-11-27 23:25:58,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152947735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:58,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:58,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:25:58,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976530453] [2024-11-27 23:25:58,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:58,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:25:58,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:58,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:25:58,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:25:58,334 INFO L87 Difference]: Start difference. First operand 5178 states and 7444 transitions. Second operand has 7 states, 7 states have (on average 86.42857142857143) internal successors, (605), 7 states have internal predecessors, (605), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:25:59,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:59,824 INFO L93 Difference]: Finished difference Result 7139 states and 10276 transitions. [2024-11-27 23:25:59,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:25:59,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 86.42857142857143) internal successors, (605), 7 states have internal predecessors, (605), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 672 [2024-11-27 23:25:59,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:59,833 INFO L225 Difference]: With dead ends: 7139 [2024-11-27 23:25:59,833 INFO L226 Difference]: Without dead ends: 6153 [2024-11-27 23:25:59,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:25:59,837 INFO L435 NwaCegarLoop]: 1485 mSDtfsCounter, 1617 mSDsluCounter, 5202 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 6687 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:59,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 6687 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 23:25:59,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6153 states. [2024-11-27 23:25:59,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6153 to 5242. [2024-11-27 23:25:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5073 states have (on average 1.4200670214863) internal successors, (7204), 5073 states have internal predecessors, (7204), 167 states have call successors, (167), 1 states have call predecessors, (167), 1 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-27 23:25:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 7538 transitions. [2024-11-27 23:25:59,968 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 7538 transitions. Word has length 672 [2024-11-27 23:25:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:59,969 INFO L471 AbstractCegarLoop]: Abstraction has 5242 states and 7538 transitions. [2024-11-27 23:25:59,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 86.42857142857143) internal successors, (605), 7 states have internal predecessors, (605), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:25:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 7538 transitions. [2024-11-27 23:25:59,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-11-27 23:25:59,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:59,979 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:25:59,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-27 23:25:59,979 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:59,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:59,980 INFO L85 PathProgramCache]: Analyzing trace with hash -37090368, now seen corresponding path program 1 times [2024-11-27 23:25:59,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:59,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900692084] [2024-11-27 23:25:59,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:59,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-27 23:26:04,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:04,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900692084] [2024-11-27 23:26:04,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900692084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:04,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:04,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:26:04,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697187736] [2024-11-27 23:26:04,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:04,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:26:04,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:04,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:26:04,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:26:04,975 INFO L87 Difference]: Start difference. First operand 5242 states and 7538 transitions. Second operand has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:26:05,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:05,991 INFO L93 Difference]: Finished difference Result 9733 states and 13956 transitions. [2024-11-27 23:26:05,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:26:05,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 673 [2024-11-27 23:26:05,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:05,996 INFO L225 Difference]: With dead ends: 9733 [2024-11-27 23:26:05,997 INFO L226 Difference]: Without dead ends: 5298 [2024-11-27 23:26:06,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:26:06,001 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 2124 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 3257 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:06,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2130 Valid, 3257 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:26:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2024-11-27 23:26:06,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 5270. [2024-11-27 23:26:06,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5270 states, 5101 states have (on average 1.4150166633993335) internal successors, (7218), 5101 states have internal predecessors, (7218), 167 states have call successors, (167), 1 states have call predecessors, (167), 1 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-27 23:26:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 7552 transitions. [2024-11-27 23:26:06,098 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 7552 transitions. Word has length 673 [2024-11-27 23:26:06,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:06,099 INFO L471 AbstractCegarLoop]: Abstraction has 5270 states and 7552 transitions. [2024-11-27 23:26:06,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:26:06,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 7552 transitions. [2024-11-27 23:26:06,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2024-11-27 23:26:06,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:06,109 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:06,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-27 23:26:06,114 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:06,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash -810048216, now seen corresponding path program 1 times [2024-11-27 23:26:06,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:06,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374500023] [2024-11-27 23:26:06,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:06,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 185 proven. 5 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:26:11,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:11,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374500023] [2024-11-27 23:26:11,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374500023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:11,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705111411] [2024-11-27 23:26:11,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:11,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:11,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:11,762 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:11,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:26:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:13,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 3848 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-27 23:26:13,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-27 23:26:14,390 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:26:14,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705111411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:14,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:14,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-27 23:26:14,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163046094] [2024-11-27 23:26:14,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:14,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:26:14,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:14,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:26:14,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:26:14,393 INFO L87 Difference]: Start difference. First operand 5270 states and 7552 transitions. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 23:26:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:15,408 INFO L93 Difference]: Finished difference Result 7487 states and 10750 transitions. [2024-11-27 23:26:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:26:15,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 675 [2024-11-27 23:26:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:15,413 INFO L225 Difference]: With dead ends: 7487 [2024-11-27 23:26:15,414 INFO L226 Difference]: Without dead ends: 5298 [2024-11-27 23:26:15,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:26:15,416 INFO L435 NwaCegarLoop]: 819 mSDtfsCounter, 994 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 4047 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:15,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4047 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:26:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2024-11-27 23:26:15,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 5284. [2024-11-27 23:26:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 5115 states have (on average 1.413880742913001) internal successors, (7232), 5115 states have internal predecessors, (7232), 167 states have call successors, (167), 1 states have call predecessors, (167), 1 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-27 23:26:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 7566 transitions. [2024-11-27 23:26:15,509 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 7566 transitions. Word has length 675 [2024-11-27 23:26:15,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:15,509 INFO L471 AbstractCegarLoop]: Abstraction has 5284 states and 7566 transitions. [2024-11-27 23:26:15,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 23:26:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 7566 transitions. [2024-11-27 23:26:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2024-11-27 23:26:15,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:15,515 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:15,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:26:15,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-27 23:26:15,716 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:15,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:15,716 INFO L85 PathProgramCache]: Analyzing trace with hash 832849142, now seen corresponding path program 1 times [2024-11-27 23:26:15,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:15,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712669281] [2024-11-27 23:26:15,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:15,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:26:17,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:17,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712669281] [2024-11-27 23:26:17,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712669281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:17,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:17,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:26:17,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257281784] [2024-11-27 23:26:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:17,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:26:17,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:17,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:26:17,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:26:17,644 INFO L87 Difference]: Start difference. First operand 5284 states and 7566 transitions. Second operand has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:26:18,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:18,984 INFO L93 Difference]: Finished difference Result 7979 states and 11451 transitions. [2024-11-27 23:26:18,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:26:18,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 675 [2024-11-27 23:26:18,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:18,991 INFO L225 Difference]: With dead ends: 7979 [2024-11-27 23:26:18,991 INFO L226 Difference]: Without dead ends: 6852 [2024-11-27 23:26:18,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:26:18,994 INFO L435 NwaCegarLoop]: 1390 mSDtfsCounter, 1684 mSDsluCounter, 3542 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 4932 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:18,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 4932 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:26:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-27 23:26:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6626. [2024-11-27 23:26:19,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6626 states, 6457 states have (on average 1.4195446801920397) internal successors, (9166), 6457 states have internal predecessors, (9166), 167 states have call successors, (167), 1 states have call predecessors, (167), 1 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-27 23:26:19,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6626 states to 6626 states and 9500 transitions. [2024-11-27 23:26:19,090 INFO L78 Accepts]: Start accepts. Automaton has 6626 states and 9500 transitions. Word has length 675 [2024-11-27 23:26:19,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:19,090 INFO L471 AbstractCegarLoop]: Abstraction has 6626 states and 9500 transitions. [2024-11-27 23:26:19,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:26:19,091 INFO L276 IsEmpty]: Start isEmpty. Operand 6626 states and 9500 transitions. [2024-11-27 23:26:19,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2024-11-27 23:26:19,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:19,098 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:19,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-27 23:26:19,098 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:19,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:19,098 INFO L85 PathProgramCache]: Analyzing trace with hash 476592774, now seen corresponding path program 1 times [2024-11-27 23:26:19,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:19,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884742090] [2024-11-27 23:26:19,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:19,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2024-11-27 23:26:24,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:24,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884742090] [2024-11-27 23:26:24,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884742090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:24,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:24,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:26:24,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094973904] [2024-11-27 23:26:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:24,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:26:24,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:24,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:26:24,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:26:24,145 INFO L87 Difference]: Start difference. First operand 6626 states and 9500 transitions. Second operand has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:26:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:24,790 INFO L93 Difference]: Finished difference Result 9843 states and 14136 transitions. [2024-11-27 23:26:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:26:24,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 675 [2024-11-27 23:26:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:24,796 INFO L225 Difference]: With dead ends: 9843 [2024-11-27 23:26:24,796 INFO L226 Difference]: Without dead ends: 6650 [2024-11-27 23:26:24,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:26:24,800 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 693 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:24,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 2486 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:26:24,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6650 states. [2024-11-27 23:26:24,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6650 to 6638. [2024-11-27 23:26:24,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6469 states have (on average 1.41876642448601) internal successors, (9178), 6469 states have internal predecessors, (9178), 167 states have call successors, (167), 1 states have call predecessors, (167), 1 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-27 23:26:24,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 9512 transitions. [2024-11-27 23:26:24,887 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 9512 transitions. Word has length 675 [2024-11-27 23:26:24,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:24,887 INFO L471 AbstractCegarLoop]: Abstraction has 6638 states and 9512 transitions. [2024-11-27 23:26:24,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:26:24,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 9512 transitions. [2024-11-27 23:26:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2024-11-27 23:26:24,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:24,895 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:24,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-27 23:26:24,895 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:24,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:24,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1258133740, now seen corresponding path program 1 times [2024-11-27 23:26:24,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:24,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348126567] [2024-11-27 23:26:24,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:24,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-27 23:26:27,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:27,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348126567] [2024-11-27 23:26:27,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348126567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:27,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:27,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:26:27,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977369005] [2024-11-27 23:26:27,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:27,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:26:27,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:27,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:26:27,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:26:27,859 INFO L87 Difference]: Start difference. First operand 6638 states and 9512 transitions. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:26:28,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:28,383 INFO L93 Difference]: Finished difference Result 9835 states and 14116 transitions. [2024-11-27 23:26:28,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:26:28,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 675 [2024-11-27 23:26:28,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:28,389 INFO L225 Difference]: With dead ends: 9835 [2024-11-27 23:26:28,389 INFO L226 Difference]: Without dead ends: 6638 [2024-11-27 23:26:28,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:26:28,394 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 997 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:28,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1673 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:26:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2024-11-27 23:26:28,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 6638. [2024-11-27 23:26:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6469 states have (on average 1.4169114237130933) internal successors, (9166), 6469 states have internal predecessors, (9166), 167 states have call successors, (167), 1 states have call predecessors, (167), 1 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-27 23:26:28,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 9500 transitions. [2024-11-27 23:26:28,487 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 9500 transitions. Word has length 675 [2024-11-27 23:26:28,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:28,488 INFO L471 AbstractCegarLoop]: Abstraction has 6638 states and 9500 transitions. [2024-11-27 23:26:28,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:26:28,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 9500 transitions. [2024-11-27 23:26:28,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-27 23:26:28,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:28,539 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:28,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-27 23:26:28,539 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:28,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:28,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2130944582, now seen corresponding path program 1 times [2024-11-27 23:26:28,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:28,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318443737] [2024-11-27 23:26:28,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:28,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2024-11-27 23:26:34,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:34,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318443737] [2024-11-27 23:26:34,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318443737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:34,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:34,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:26:34,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874301097] [2024-11-27 23:26:34,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:34,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:26:34,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:34,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:26:34,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:26:34,620 INFO L87 Difference]: Start difference. First operand 6638 states and 9500 transitions. Second operand has 5 states, 5 states have (on average 97.6) internal successors, (488), 5 states have internal predecessors, (488), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:26:35,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:35,255 INFO L93 Difference]: Finished difference Result 9275 states and 13288 transitions. [2024-11-27 23:26:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:26:35,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 97.6) internal successors, (488), 5 states have internal predecessors, (488), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 677 [2024-11-27 23:26:35,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:35,262 INFO L225 Difference]: With dead ends: 9275 [2024-11-27 23:26:35,262 INFO L226 Difference]: Without dead ends: 6686 [2024-11-27 23:26:35,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:26:35,266 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 691 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:35,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 2475 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:26:35,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6686 states. [2024-11-27 23:26:35,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6686 to 6674. [2024-11-27 23:26:35,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6674 states, 6505 states have (on average 1.4146041506533436) internal successors, (9202), 6505 states have internal predecessors, (9202), 167 states have call successors, (167), 1 states have call predecessors, (167), 1 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-27 23:26:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6674 states to 6674 states and 9536 transitions. [2024-11-27 23:26:35,460 INFO L78 Accepts]: Start accepts. Automaton has 6674 states and 9536 transitions. Word has length 677 [2024-11-27 23:26:35,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:35,461 INFO L471 AbstractCegarLoop]: Abstraction has 6674 states and 9536 transitions. [2024-11-27 23:26:35,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.6) internal successors, (488), 5 states have internal predecessors, (488), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:26:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand 6674 states and 9536 transitions. [2024-11-27 23:26:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-11-27 23:26:35,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:35,472 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:35,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-27 23:26:35,473 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:35,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:35,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1096758276, now seen corresponding path program 1 times [2024-11-27 23:26:35,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:35,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302356324] [2024-11-27 23:26:35,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:35,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-11-27 23:26:40,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:40,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302356324] [2024-11-27 23:26:40,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302356324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:40,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:40,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:26:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723344471] [2024-11-27 23:26:40,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:40,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:26:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:40,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:26:40,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:26:40,860 INFO L87 Difference]: Start difference. First operand 6674 states and 9536 transitions. Second operand has 7 states, 7 states have (on average 66.42857142857143) internal successors, (465), 7 states have internal predecessors, (465), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:26:41,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:41,851 INFO L93 Difference]: Finished difference Result 11977 states and 17130 transitions. [2024-11-27 23:26:41,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:26:41,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 66.42857142857143) internal successors, (465), 7 states have internal predecessors, (465), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 679 [2024-11-27 23:26:41,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:41,858 INFO L225 Difference]: With dead ends: 11977 [2024-11-27 23:26:41,858 INFO L226 Difference]: Without dead ends: 6830 [2024-11-27 23:26:41,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:26:41,863 INFO L435 NwaCegarLoop]: 819 mSDtfsCounter, 2076 mSDsluCounter, 2440 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:41,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 3259 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:26:41,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2024-11-27 23:26:41,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 6752. [2024-11-27 23:26:41,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6752 states, 6583 states have (on average 1.4096916299559472) internal successors, (9280), 6583 states have internal predecessors, (9280), 167 states have call successors, (167), 1 states have call predecessors, (167), 1 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-27 23:26:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6752 states to 6752 states and 9614 transitions. [2024-11-27 23:26:41,954 INFO L78 Accepts]: Start accepts. Automaton has 6752 states and 9614 transitions. Word has length 679 [2024-11-27 23:26:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:41,954 INFO L471 AbstractCegarLoop]: Abstraction has 6752 states and 9614 transitions. [2024-11-27 23:26:41,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.42857142857143) internal successors, (465), 7 states have internal predecessors, (465), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:26:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 6752 states and 9614 transitions. [2024-11-27 23:26:41,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-11-27 23:26:41,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:41,962 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:41,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-27 23:26:41,962 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:41,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:41,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1080155335, now seen corresponding path program 1 times [2024-11-27 23:26:41,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:41,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699610384] [2024-11-27 23:26:41,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:41,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2024-11-27 23:26:47,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:47,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699610384] [2024-11-27 23:26:47,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699610384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:47,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:26:47,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551782805] [2024-11-27 23:26:47,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:47,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:26:47,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:47,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:26:47,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:26:47,875 INFO L87 Difference]: Start difference. First operand 6752 states and 9614 transitions. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:26:48,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:48,913 INFO L93 Difference]: Finished difference Result 17967 states and 25540 transitions. [2024-11-27 23:26:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:26:48,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 679 [2024-11-27 23:26:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:48,927 INFO L225 Difference]: With dead ends: 17967 [2024-11-27 23:26:48,927 INFO L226 Difference]: Without dead ends: 12166 [2024-11-27 23:26:48,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:26:48,936 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 1939 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 3307 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:48,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1951 Valid, 3307 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:26:48,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12166 states. [2024-11-27 23:26:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12166 to 7496. [2024-11-27 23:26:49,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7303 states have (on average 1.4103792961796522) internal successors, (10300), 7303 states have internal predecessors, (10300), 191 states have call successors, (191), 1 states have call predecessors, (191), 1 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-27 23:26:49,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 10682 transitions. [2024-11-27 23:26:49,133 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 10682 transitions. Word has length 679 [2024-11-27 23:26:49,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:49,133 INFO L471 AbstractCegarLoop]: Abstraction has 7496 states and 10682 transitions. [2024-11-27 23:26:49,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:26:49,133 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 10682 transitions. [2024-11-27 23:26:49,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2024-11-27 23:26:49,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:49,140 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:49,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-27 23:26:49,141 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:49,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:49,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1577598082, now seen corresponding path program 1 times [2024-11-27 23:26:49,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:49,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579222916] [2024-11-27 23:26:49,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:49,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-27 23:26:53,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:53,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579222916] [2024-11-27 23:26:53,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579222916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:53,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:53,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:26:53,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395808938] [2024-11-27 23:26:53,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:53,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:26:53,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:53,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:26:53,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:26:53,692 INFO L87 Difference]: Start difference. First operand 7496 states and 10682 transitions. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-27 23:26:54,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:54,569 INFO L93 Difference]: Finished difference Result 11007 states and 15708 transitions. [2024-11-27 23:26:54,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:26:54,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 680 [2024-11-27 23:26:54,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:54,577 INFO L225 Difference]: With dead ends: 11007 [2024-11-27 23:26:54,577 INFO L226 Difference]: Without dead ends: 7528 [2024-11-27 23:26:54,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:26:54,582 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 1023 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:54,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 3266 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:26:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7528 states. [2024-11-27 23:26:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7528 to 7506. [2024-11-27 23:26:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7313 states have (on average 1.4087241897989882) internal successors, (10302), 7313 states have internal predecessors, (10302), 191 states have call successors, (191), 1 states have call predecessors, (191), 1 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-27 23:26:54,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 10684 transitions. [2024-11-27 23:26:54,680 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 10684 transitions. Word has length 680 [2024-11-27 23:26:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:54,681 INFO L471 AbstractCegarLoop]: Abstraction has 7506 states and 10684 transitions. [2024-11-27 23:26:54,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-27 23:26:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 10684 transitions. [2024-11-27 23:26:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2024-11-27 23:26:54,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:54,688 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:26:54,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-27 23:26:54,688 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:54,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1390696070, now seen corresponding path program 1 times [2024-11-27 23:26:54,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:54,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382844067] [2024-11-27 23:26:54,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:54,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:59,215 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-27 23:26:59,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:59,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382844067] [2024-11-27 23:26:59,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382844067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:59,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:59,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:26:59,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570480101] [2024-11-27 23:26:59,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:59,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:26:59,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:59,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:26:59,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:26:59,219 INFO L87 Difference]: Start difference. First operand 7506 states and 10684 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:26:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:59,835 INFO L93 Difference]: Finished difference Result 10117 states and 14432 transitions. [2024-11-27 23:26:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:26:59,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 682 [2024-11-27 23:26:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:59,844 INFO L225 Difference]: With dead ends: 10117 [2024-11-27 23:26:59,844 INFO L226 Difference]: Without dead ends: 7506 [2024-11-27 23:26:59,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:26:59,848 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 688 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:59,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 1671 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:26:59,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7506 states. [2024-11-27 23:26:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7506 to 7470. [2024-11-27 23:26:59,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7470 states, 7277 states have (on average 1.40909715542119) internal successors, (10254), 7277 states have internal predecessors, (10254), 191 states have call successors, (191), 1 states have call predecessors, (191), 1 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-27 23:26:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 10636 transitions. [2024-11-27 23:26:59,999 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 10636 transitions. Word has length 682 [2024-11-27 23:27:00,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:00,000 INFO L471 AbstractCegarLoop]: Abstraction has 7470 states and 10636 transitions. [2024-11-27 23:27:00,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:27:00,000 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 10636 transitions. [2024-11-27 23:27:00,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2024-11-27 23:27:00,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:00,011 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:27:00,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-27 23:27:00,011 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:00,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:00,012 INFO L85 PathProgramCache]: Analyzing trace with hash 107916794, now seen corresponding path program 1 times [2024-11-27 23:27:00,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:00,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333994629] [2024-11-27 23:27:00,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:00,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:27:04,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:04,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333994629] [2024-11-27 23:27:04,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333994629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:04,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:04,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:27:04,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603703993] [2024-11-27 23:27:04,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:04,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:27:04,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:04,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:27:04,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:27:04,350 INFO L87 Difference]: Start difference. First operand 7470 states and 10636 transitions. Second operand has 6 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:27:05,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:05,373 INFO L93 Difference]: Finished difference Result 9423 states and 13440 transitions. [2024-11-27 23:27:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:27:05,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 682 [2024-11-27 23:27:05,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:05,380 INFO L225 Difference]: With dead ends: 9423 [2024-11-27 23:27:05,380 INFO L226 Difference]: Without dead ends: 7853 [2024-11-27 23:27:05,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:27:05,383 INFO L435 NwaCegarLoop]: 829 mSDtfsCounter, 1549 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:05,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 3238 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:27:05,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2024-11-27 23:27:05,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 5402. [2024-11-27 23:27:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5267 states have (on average 1.4112397949496867) internal successors, (7433), 5267 states have internal predecessors, (7433), 133 states have call successors, (133), 1 states have call predecessors, (133), 1 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-27 23:27:05,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 7699 transitions. [2024-11-27 23:27:05,473 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 7699 transitions. Word has length 682 [2024-11-27 23:27:05,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:05,474 INFO L471 AbstractCegarLoop]: Abstraction has 5402 states and 7699 transitions. [2024-11-27 23:27:05,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:27:05,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 7699 transitions. [2024-11-27 23:27:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2024-11-27 23:27:05,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:05,480 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:27:05,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-27 23:27:05,480 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:05,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:05,481 INFO L85 PathProgramCache]: Analyzing trace with hash 686948922, now seen corresponding path program 1 times [2024-11-27 23:27:05,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:05,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309728489] [2024-11-27 23:27:05,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:05,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:10,969 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2024-11-27 23:27:10,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:10,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309728489] [2024-11-27 23:27:10,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309728489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:10,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:10,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:27:10,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499567864] [2024-11-27 23:27:10,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:10,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:27:10,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:10,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:27:10,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:27:10,971 INFO L87 Difference]: Start difference. First operand 5402 states and 7699 transitions. Second operand has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:27:11,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:11,489 INFO L93 Difference]: Finished difference Result 10553 states and 14976 transitions. [2024-11-27 23:27:11,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:27:11,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 682 [2024-11-27 23:27:11,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:11,495 INFO L225 Difference]: With dead ends: 10553 [2024-11-27 23:27:11,495 INFO L226 Difference]: Without dead ends: 5474 [2024-11-27 23:27:11,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:27:11,499 INFO L435 NwaCegarLoop]: 1101 mSDtfsCounter, 1081 mSDsluCounter, 4124 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 5225 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:11,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 5225 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:27:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2024-11-27 23:27:11,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5438. [2024-11-27 23:27:11,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5303 states have (on average 1.4050537431642467) internal successors, (7451), 5303 states have internal predecessors, (7451), 133 states have call successors, (133), 1 states have call predecessors, (133), 1 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-27 23:27:11,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 7717 transitions. [2024-11-27 23:27:11,574 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 7717 transitions. Word has length 682 [2024-11-27 23:27:11,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:11,574 INFO L471 AbstractCegarLoop]: Abstraction has 5438 states and 7717 transitions. [2024-11-27 23:27:11,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:27:11,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 7717 transitions. [2024-11-27 23:27:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2024-11-27 23:27:11,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:11,580 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:27:11,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-27 23:27:11,580 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:11,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:11,580 INFO L85 PathProgramCache]: Analyzing trace with hash -939744024, now seen corresponding path program 1 times [2024-11-27 23:27:11,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:11,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680137663] [2024-11-27 23:27:11,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:11,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:17,622 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-27 23:27:17,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:17,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680137663] [2024-11-27 23:27:17,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680137663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:17,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:17,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:27:17,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318817653] [2024-11-27 23:27:17,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:17,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:27:17,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:17,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:27:17,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:27:17,624 INFO L87 Difference]: Start difference. First operand 5438 states and 7717 transitions. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:27:18,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:18,500 INFO L93 Difference]: Finished difference Result 9813 states and 13912 transitions. [2024-11-27 23:27:18,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:27:18,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 684 [2024-11-27 23:27:18,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:18,506 INFO L225 Difference]: With dead ends: 9813 [2024-11-27 23:27:18,506 INFO L226 Difference]: Without dead ends: 5474 [2024-11-27 23:27:18,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:27:18,509 INFO L435 NwaCegarLoop]: 816 mSDtfsCounter, 1040 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:18,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 3249 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:27:18,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2024-11-27 23:27:18,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5456. [2024-11-27 23:27:18,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5321 states have (on average 1.4036835181356888) internal successors, (7469), 5321 states have internal predecessors, (7469), 133 states have call successors, (133), 1 states have call predecessors, (133), 1 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-27 23:27:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 7735 transitions. [2024-11-27 23:27:18,588 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 7735 transitions. Word has length 684 [2024-11-27 23:27:18,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:18,588 INFO L471 AbstractCegarLoop]: Abstraction has 5456 states and 7735 transitions. [2024-11-27 23:27:18,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:27:18,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 7735 transitions. [2024-11-27 23:27:18,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2024-11-27 23:27:18,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:18,594 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:27:18,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-27 23:27:18,594 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:18,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:18,595 INFO L85 PathProgramCache]: Analyzing trace with hash -900451060, now seen corresponding path program 1 times [2024-11-27 23:27:18,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:18,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184630508] [2024-11-27 23:27:18,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:18,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 196 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:27:24,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:24,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184630508] [2024-11-27 23:27:24,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184630508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:24,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481205342] [2024-11-27 23:27:24,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:24,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:24,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:24,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:24,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:27:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:27,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 3863 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-27 23:27:27,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:27:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 307 proven. 3 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-27 23:27:28,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 154 proven. 3 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-11-27 23:27:31,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481205342] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:27:31,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:27:31,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-27 23:27:31,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887675805] [2024-11-27 23:27:31,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:27:31,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 23:27:31,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:31,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 23:27:31,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:27:31,345 INFO L87 Difference]: Start difference. First operand 5456 states and 7735 transitions. Second operand has 23 states, 23 states have (on average 65.0) internal successors, (1495), 23 states have internal predecessors, (1495), 6 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:27:37,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:37,615 INFO L93 Difference]: Finished difference Result 12535 states and 17792 transitions. [2024-11-27 23:27:37,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-27 23:27:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 65.0) internal successors, (1495), 23 states have internal predecessors, (1495), 6 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 686 [2024-11-27 23:27:37,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:37,627 INFO L225 Difference]: With dead ends: 12535 [2024-11-27 23:27:37,627 INFO L226 Difference]: Without dead ends: 7858 [2024-11-27 23:27:37,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1407 GetRequests, 1361 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 23:27:37,632 INFO L435 NwaCegarLoop]: 1944 mSDtfsCounter, 5340 mSDsluCounter, 25222 mSDsCounter, 0 mSdLazyCounter, 11466 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5340 SdHoareTripleChecker+Valid, 27166 SdHoareTripleChecker+Invalid, 11480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 11466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:37,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5340 Valid, 27166 Invalid, 11480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 11466 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-27 23:27:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7858 states. [2024-11-27 23:27:37,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7858 to 5785. [2024-11-27 23:27:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 5643 states have (on average 1.390749601275917) internal successors, (7848), 5643 states have internal predecessors, (7848), 140 states have call successors, (140), 1 states have call predecessors, (140), 1 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-27 23:27:37,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 8128 transitions. [2024-11-27 23:27:37,720 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 8128 transitions. Word has length 686 [2024-11-27 23:27:37,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:37,720 INFO L471 AbstractCegarLoop]: Abstraction has 5785 states and 8128 transitions. [2024-11-27 23:27:37,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 65.0) internal successors, (1495), 23 states have internal predecessors, (1495), 6 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:27:37,720 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 8128 transitions. [2024-11-27 23:27:37,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-27 23:27:37,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:37,726 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:27:37,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:27:37,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-27 23:27:37,927 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:37,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1352501727, now seen corresponding path program 1 times [2024-11-27 23:27:37,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:37,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420985129] [2024-11-27 23:27:37,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:37,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2024-11-27 23:27:43,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:43,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420985129] [2024-11-27 23:27:43,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420985129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:43,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:43,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:27:43,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330911131] [2024-11-27 23:27:43,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:43,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:27:43,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:43,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:27:43,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:27:43,857 INFO L87 Difference]: Start difference. First operand 5785 states and 8128 transitions. Second operand has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:27:44,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:44,110 INFO L93 Difference]: Finished difference Result 11657 states and 16462 transitions. [2024-11-27 23:27:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:27:44,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 693 [2024-11-27 23:27:44,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:44,119 INFO L225 Difference]: With dead ends: 11657 [2024-11-27 23:27:44,119 INFO L226 Difference]: Without dead ends: 8699 [2024-11-27 23:27:44,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:27:44,124 INFO L435 NwaCegarLoop]: 1157 mSDtfsCounter, 3334 mSDsluCounter, 5192 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:44,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3346 Valid, 6349 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:27:44,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8699 states. [2024-11-27 23:27:44,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8699 to 6239. [2024-11-27 23:27:44,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6239 states, 6069 states have (on average 1.3840830449826989) internal successors, (8400), 6069 states have internal predecessors, (8400), 168 states have call successors, (168), 1 states have call predecessors, (168), 1 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-27 23:27:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6239 states to 6239 states and 8736 transitions. [2024-11-27 23:27:44,251 INFO L78 Accepts]: Start accepts. Automaton has 6239 states and 8736 transitions. Word has length 693 [2024-11-27 23:27:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:44,252 INFO L471 AbstractCegarLoop]: Abstraction has 6239 states and 8736 transitions. [2024-11-27 23:27:44,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:27:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6239 states and 8736 transitions. [2024-11-27 23:27:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-27 23:27:44,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:44,257 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:27:44,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-27 23:27:44,258 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:44,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:44,258 INFO L85 PathProgramCache]: Analyzing trace with hash -316066041, now seen corresponding path program 1 times [2024-11-27 23:27:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:44,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387863927] [2024-11-27 23:27:44,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:44,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-27 23:27:50,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:50,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387863927] [2024-11-27 23:27:50,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387863927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:50,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:50,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:27:50,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296615853] [2024-11-27 23:27:50,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:50,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:27:50,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:50,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:27:50,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:27:50,082 INFO L87 Difference]: Start difference. First operand 6239 states and 8736 transitions. Second operand has 8 states, 8 states have (on average 63.5) internal successors, (508), 8 states have internal predecessors, (508), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:27:50,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:50,473 INFO L93 Difference]: Finished difference Result 12285 states and 17312 transitions. [2024-11-27 23:27:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:27:50,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 63.5) internal successors, (508), 8 states have internal predecessors, (508), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 693 [2024-11-27 23:27:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:50,480 INFO L225 Difference]: With dead ends: 12285 [2024-11-27 23:27:50,480 INFO L226 Difference]: Without dead ends: 9311 [2024-11-27 23:27:50,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:27:50,483 INFO L435 NwaCegarLoop]: 1837 mSDtfsCounter, 1788 mSDsluCounter, 8398 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:50,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 10235 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:27:50,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9311 states. [2024-11-27 23:27:50,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9311 to 6864. [2024-11-27 23:27:50,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6864 states, 6656 states have (on average 1.3765024038461537) internal successors, (9162), 6656 states have internal predecessors, (9162), 206 states have call successors, (206), 1 states have call predecessors, (206), 1 states have return successors, (206), 206 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-27 23:27:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6864 states to 6864 states and 9574 transitions. [2024-11-27 23:27:50,610 INFO L78 Accepts]: Start accepts. Automaton has 6864 states and 9574 transitions. Word has length 693 [2024-11-27 23:27:50,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:50,610 INFO L471 AbstractCegarLoop]: Abstraction has 6864 states and 9574 transitions. [2024-11-27 23:27:50,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.5) internal successors, (508), 8 states have internal predecessors, (508), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:27:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6864 states and 9574 transitions. [2024-11-27 23:27:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-27 23:27:50,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:50,621 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:27:50,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-27 23:27:50,621 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:50,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash -789512862, now seen corresponding path program 1 times [2024-11-27 23:27:50,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:50,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934489347] [2024-11-27 23:27:50,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:50,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:55,738 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2024-11-27 23:27:55,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:55,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934489347] [2024-11-27 23:27:55,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934489347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:55,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:55,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:27:55,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816120616] [2024-11-27 23:27:55,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:55,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:27:55,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:55,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:27:55,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:27:55,741 INFO L87 Difference]: Start difference. First operand 6864 states and 9574 transitions. Second operand has 8 states, 8 states have (on average 67.125) internal successors, (537), 8 states have internal predecessors, (537), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:27:57,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:57,301 INFO L93 Difference]: Finished difference Result 13630 states and 19168 transitions. [2024-11-27 23:27:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:27:57,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 67.125) internal successors, (537), 8 states have internal predecessors, (537), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 695 [2024-11-27 23:27:57,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:57,311 INFO L225 Difference]: With dead ends: 13630 [2024-11-27 23:27:57,311 INFO L226 Difference]: Without dead ends: 10665 [2024-11-27 23:27:57,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:27:57,315 INFO L435 NwaCegarLoop]: 1724 mSDtfsCounter, 1893 mSDsluCounter, 7356 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1900 SdHoareTripleChecker+Valid, 9080 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:57,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1900 Valid, 9080 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:27:57,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10665 states. [2024-11-27 23:27:57,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10665 to 10591. [2024-11-27 23:27:57,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10591 states, 10281 states have (on average 1.3858574068670362) internal successors, (14248), 10281 states have internal predecessors, (14248), 308 states have call successors, (308), 1 states have call predecessors, (308), 1 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2024-11-27 23:27:57,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10591 states to 10591 states and 14864 transitions. [2024-11-27 23:27:57,478 INFO L78 Accepts]: Start accepts. Automaton has 10591 states and 14864 transitions. Word has length 695 [2024-11-27 23:27:57,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:57,479 INFO L471 AbstractCegarLoop]: Abstraction has 10591 states and 14864 transitions. [2024-11-27 23:27:57,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.125) internal successors, (537), 8 states have internal predecessors, (537), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:27:57,479 INFO L276 IsEmpty]: Start isEmpty. Operand 10591 states and 14864 transitions. [2024-11-27 23:27:57,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-27 23:27:57,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:57,487 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:27:57,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-27 23:27:57,488 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:57,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash -954334124, now seen corresponding path program 1 times [2024-11-27 23:27:57,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:57,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844536212] [2024-11-27 23:27:57,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2024-11-27 23:28:01,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:01,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844536212] [2024-11-27 23:28:01,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844536212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:01,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:01,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:28:01,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811026098] [2024-11-27 23:28:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:01,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:28:01,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:01,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:28:01,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:28:01,573 INFO L87 Difference]: Start difference. First operand 10591 states and 14864 transitions. Second operand has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:28:02,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:02,047 INFO L93 Difference]: Finished difference Result 21714 states and 30398 transitions. [2024-11-27 23:28:02,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:28:02,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 697 [2024-11-27 23:28:02,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:02,066 INFO L225 Difference]: With dead ends: 21714 [2024-11-27 23:28:02,066 INFO L226 Difference]: Without dead ends: 15763 [2024-11-27 23:28:02,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:28:02,074 INFO L435 NwaCegarLoop]: 1108 mSDtfsCounter, 3165 mSDsluCounter, 3752 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3172 SdHoareTripleChecker+Valid, 4860 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:02,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3172 Valid, 4860 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:02,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15763 states. [2024-11-27 23:28:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15763 to 12903. [2024-11-27 23:28:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12903 states, 12489 states have (on average 1.3746496917287212) internal successors, (17168), 12489 states have internal predecessors, (17168), 412 states have call successors, (412), 1 states have call predecessors, (412), 1 states have return successors, (412), 412 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-27 23:28:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12903 states to 12903 states and 17992 transitions. [2024-11-27 23:28:02,440 INFO L78 Accepts]: Start accepts. Automaton has 12903 states and 17992 transitions. Word has length 697 [2024-11-27 23:28:02,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:02,441 INFO L471 AbstractCegarLoop]: Abstraction has 12903 states and 17992 transitions. [2024-11-27 23:28:02,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:28:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 12903 states and 17992 transitions. [2024-11-27 23:28:02,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-27 23:28:02,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:02,457 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:28:02,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-27 23:28:02,457 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:02,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:02,458 INFO L85 PathProgramCache]: Analyzing trace with hash 875103710, now seen corresponding path program 1 times [2024-11-27 23:28:02,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:02,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492451414] [2024-11-27 23:28:02,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:02,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-27 23:28:07,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:07,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492451414] [2024-11-27 23:28:07,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492451414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:07,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:07,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:28:07,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973802976] [2024-11-27 23:28:07,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:07,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:28:07,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:07,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:28:07,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:28:07,979 INFO L87 Difference]: Start difference. First operand 12903 states and 17992 transitions. Second operand has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:28:09,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:09,584 INFO L93 Difference]: Finished difference Result 15638 states and 21852 transitions. [2024-11-27 23:28:09,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:28:09,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 697 [2024-11-27 23:28:09,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:09,600 INFO L225 Difference]: With dead ends: 15638 [2024-11-27 23:28:09,601 INFO L226 Difference]: Without dead ends: 12977 [2024-11-27 23:28:09,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:28:09,607 INFO L435 NwaCegarLoop]: 1748 mSDtfsCounter, 1846 mSDsluCounter, 7443 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 9191 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:09,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 9191 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:28:09,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12977 states. [2024-11-27 23:28:09,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12977 to 12903. [2024-11-27 23:28:09,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12903 states, 12489 states have (on average 1.3740091280326687) internal successors, (17160), 12489 states have internal predecessors, (17160), 412 states have call successors, (412), 1 states have call predecessors, (412), 1 states have return successors, (412), 412 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-27 23:28:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12903 states to 12903 states and 17984 transitions. [2024-11-27 23:28:09,961 INFO L78 Accepts]: Start accepts. Automaton has 12903 states and 17984 transitions. Word has length 697 [2024-11-27 23:28:09,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:09,962 INFO L471 AbstractCegarLoop]: Abstraction has 12903 states and 17984 transitions. [2024-11-27 23:28:09,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-27 23:28:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 12903 states and 17984 transitions. [2024-11-27 23:28:09,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-27 23:28:09,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:09,978 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:28:09,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-27 23:28:09,978 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:09,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash 579558900, now seen corresponding path program 1 times [2024-11-27 23:28:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:09,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133975051] [2024-11-27 23:28:09,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:09,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-27 23:28:16,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:16,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133975051] [2024-11-27 23:28:16,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133975051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:16,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:16,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:28:16,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278258648] [2024-11-27 23:28:16,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:16,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:28:16,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:16,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:28:16,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:28:16,244 INFO L87 Difference]: Start difference. First operand 12903 states and 17984 transitions. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-27 23:28:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:17,216 INFO L93 Difference]: Finished difference Result 19115 states and 26796 transitions. [2024-11-27 23:28:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:28:17,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 697 [2024-11-27 23:28:17,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:17,232 INFO L225 Difference]: With dead ends: 19115 [2024-11-27 23:28:17,233 INFO L226 Difference]: Without dead ends: 12927 [2024-11-27 23:28:17,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:28:17,240 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 981 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:17,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 3245 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:28:17,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12927 states. [2024-11-27 23:28:17,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12927 to 12915. [2024-11-27 23:28:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12915 states, 12501 states have (on average 1.3736501079913608) internal successors, (17172), 12501 states have internal predecessors, (17172), 412 states have call successors, (412), 1 states have call predecessors, (412), 1 states have return successors, (412), 412 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-27 23:28:17,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12915 states to 12915 states and 17996 transitions. [2024-11-27 23:28:17,590 INFO L78 Accepts]: Start accepts. Automaton has 12915 states and 17996 transitions. Word has length 697 [2024-11-27 23:28:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:17,590 INFO L471 AbstractCegarLoop]: Abstraction has 12915 states and 17996 transitions. [2024-11-27 23:28:17,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-27 23:28:17,591 INFO L276 IsEmpty]: Start isEmpty. Operand 12915 states and 17996 transitions. [2024-11-27 23:28:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-27 23:28:17,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:17,607 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:28:17,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-27 23:28:17,607 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:17,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1649037509, now seen corresponding path program 1 times [2024-11-27 23:28:17,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:17,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899909252] [2024-11-27 23:28:17,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:17,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2024-11-27 23:28:18,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:18,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899909252] [2024-11-27 23:28:18,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899909252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:18,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:18,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:28:18,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675845565] [2024-11-27 23:28:18,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:18,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:28:18,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:18,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:28:18,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:28:18,826 INFO L87 Difference]: Start difference. First operand 12915 states and 17996 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:28:19,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:19,018 INFO L93 Difference]: Finished difference Result 21091 states and 29488 transitions. [2024-11-27 23:28:19,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:28:19,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 697 [2024-11-27 23:28:19,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:19,029 INFO L225 Difference]: With dead ends: 21091 [2024-11-27 23:28:19,029 INFO L226 Difference]: Without dead ends: 13027 [2024-11-27 23:28:19,036 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 [2024-11-27 23:28:19,036 INFO L435 NwaCegarLoop]: 1124 mSDtfsCounter, 0 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3349 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:19,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3349 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:28:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13027 states. [2024-11-27 23:28:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13027 to 13027. [2024-11-27 23:28:19,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13027 states, 12613 states have (on average 1.3703321969396653) internal successors, (17284), 12613 states have internal predecessors, (17284), 412 states have call successors, (412), 1 states have call predecessors, (412), 1 states have return successors, (412), 412 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-27 23:28:19,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13027 states to 13027 states and 18108 transitions. [2024-11-27 23:28:19,299 INFO L78 Accepts]: Start accepts. Automaton has 13027 states and 18108 transitions. Word has length 697 [2024-11-27 23:28:19,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:19,299 INFO L471 AbstractCegarLoop]: Abstraction has 13027 states and 18108 transitions. [2024-11-27 23:28:19,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:28:19,300 INFO L276 IsEmpty]: Start isEmpty. Operand 13027 states and 18108 transitions. [2024-11-27 23:28:19,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-27 23:28:19,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:19,316 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:28:19,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-27 23:28:19,316 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:19,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:19,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1084696359, now seen corresponding path program 1 times [2024-11-27 23:28:19,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:19,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389080229] [2024-11-27 23:28:19,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:19,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-27 23:28:26,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:26,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389080229] [2024-11-27 23:28:26,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389080229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:26,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:26,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:28:26,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269290965] [2024-11-27 23:28:26,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:26,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:28:26,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:26,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:28:26,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:28:26,258 INFO L87 Difference]: Start difference. First operand 13027 states and 18108 transitions. Second operand has 8 states, 8 states have (on average 61.25) internal successors, (490), 8 states have internal predecessors, (490), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:28:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:26,569 INFO L93 Difference]: Finished difference Result 21035 states and 29264 transitions. [2024-11-27 23:28:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:28:26,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 61.25) internal successors, (490), 8 states have internal predecessors, (490), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 697 [2024-11-27 23:28:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:26,581 INFO L225 Difference]: With dead ends: 21035 [2024-11-27 23:28:26,581 INFO L226 Difference]: Without dead ends: 13251 [2024-11-27 23:28:26,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:28:26,588 INFO L435 NwaCegarLoop]: 1104 mSDtfsCounter, 1011 mSDsluCounter, 5475 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 6579 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:26,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 6579 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:28:26,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13251 states. [2024-11-27 23:28:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13251 to 13139. [2024-11-27 23:28:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13139 states, 12725 states have (on average 1.362671905697446) internal successors, (17340), 12725 states have internal predecessors, (17340), 412 states have call successors, (412), 1 states have call predecessors, (412), 1 states have return successors, (412), 412 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-27 23:28:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13139 states to 13139 states and 18164 transitions. [2024-11-27 23:28:26,828 INFO L78 Accepts]: Start accepts. Automaton has 13139 states and 18164 transitions. Word has length 697 [2024-11-27 23:28:26,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:26,828 INFO L471 AbstractCegarLoop]: Abstraction has 13139 states and 18164 transitions. [2024-11-27 23:28:26,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 61.25) internal successors, (490), 8 states have internal predecessors, (490), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:28:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 13139 states and 18164 transitions. [2024-11-27 23:28:26,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-27 23:28:26,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:26,839 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:28:26,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-27 23:28:26,840 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:26,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:26,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1205357785, now seen corresponding path program 1 times [2024-11-27 23:28:26,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:26,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194238145] [2024-11-27 23:28:26,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:26,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2024-11-27 23:28:33,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:33,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194238145] [2024-11-27 23:28:33,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194238145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:33,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:33,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:28:33,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343990543] [2024-11-27 23:28:33,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:33,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:28:33,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:33,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:28:33,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:28:33,675 INFO L87 Difference]: Start difference. First operand 13139 states and 18164 transitions. Second operand has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:28:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:34,478 INFO L93 Difference]: Finished difference Result 27683 states and 38572 transitions. [2024-11-27 23:28:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:28:34,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 697 [2024-11-27 23:28:34,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:34,503 INFO L225 Difference]: With dead ends: 27683 [2024-11-27 23:28:34,503 INFO L226 Difference]: Without dead ends: 21395 [2024-11-27 23:28:34,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:28:34,515 INFO L435 NwaCegarLoop]: 1942 mSDtfsCounter, 3334 mSDsluCounter, 6628 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 8570 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:34,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 8570 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:28:34,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21395 states. [2024-11-27 23:28:34,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21395 to 14675. [2024-11-27 23:28:34,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14675 states, 14205 states have (on average 1.3626187961985217) internal successors, (19356), 14205 states have internal predecessors, (19356), 468 states have call successors, (468), 1 states have call predecessors, (468), 1 states have return successors, (468), 468 states have call predecessors, (468), 468 states have call successors, (468) [2024-11-27 23:28:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14675 states to 14675 states and 20292 transitions. [2024-11-27 23:28:34,966 INFO L78 Accepts]: Start accepts. Automaton has 14675 states and 20292 transitions. Word has length 697 [2024-11-27 23:28:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:34,966 INFO L471 AbstractCegarLoop]: Abstraction has 14675 states and 20292 transitions. [2024-11-27 23:28:34,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:28:34,966 INFO L276 IsEmpty]: Start isEmpty. Operand 14675 states and 20292 transitions. [2024-11-27 23:28:34,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-27 23:28:34,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:34,981 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:28:34,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-27 23:28:34,981 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:34,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:34,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1274709339, now seen corresponding path program 1 times [2024-11-27 23:28:34,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:34,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238128925] [2024-11-27 23:28:34,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:34,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2024-11-27 23:28:42,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:42,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238128925] [2024-11-27 23:28:42,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238128925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:42,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:42,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:28:42,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688440457] [2024-11-27 23:28:42,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:42,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:28:42,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:42,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:28:42,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:28:42,778 INFO L87 Difference]: Start difference. First operand 14675 states and 20292 transitions. Second operand has 8 states, 8 states have (on average 63.25) internal successors, (506), 8 states have internal predecessors, (506), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 23:28:43,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:43,690 INFO L93 Difference]: Finished difference Result 28535 states and 39624 transitions. [2024-11-27 23:28:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:28:43,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 63.25) internal successors, (506), 8 states have internal predecessors, (506), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 698 [2024-11-27 23:28:43,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:43,709 INFO L225 Difference]: With dead ends: 28535 [2024-11-27 23:28:43,709 INFO L226 Difference]: Without dead ends: 23087 [2024-11-27 23:28:43,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:28:43,717 INFO L435 NwaCegarLoop]: 1929 mSDtfsCounter, 3346 mSDsluCounter, 7619 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3353 SdHoareTripleChecker+Valid, 9548 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:43,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3353 Valid, 9548 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:28:43,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23087 states. [2024-11-27 23:28:44,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23087 to 16123. [2024-11-27 23:28:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16123 states, 15605 states have (on average 1.3634091637295738) internal successors, (21276), 15605 states have internal predecessors, (21276), 516 states have call successors, (516), 1 states have call predecessors, (516), 1 states have return successors, (516), 516 states have call predecessors, (516), 516 states have call successors, (516) [2024-11-27 23:28:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16123 states to 16123 states and 22308 transitions. [2024-11-27 23:28:44,085 INFO L78 Accepts]: Start accepts. Automaton has 16123 states and 22308 transitions. Word has length 698 [2024-11-27 23:28:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:44,085 INFO L471 AbstractCegarLoop]: Abstraction has 16123 states and 22308 transitions. [2024-11-27 23:28:44,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.25) internal successors, (506), 8 states have internal predecessors, (506), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 23:28:44,085 INFO L276 IsEmpty]: Start isEmpty. Operand 16123 states and 22308 transitions. [2024-11-27 23:28:44,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-27 23:28:44,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:44,105 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:28:44,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-27 23:28:44,105 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:44,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:44,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1531508966, now seen corresponding path program 1 times [2024-11-27 23:28:44,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:44,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335531865] [2024-11-27 23:28:44,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:44,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2024-11-27 23:28:50,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:50,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335531865] [2024-11-27 23:28:50,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335531865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:50,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:50,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:28:50,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432335359] [2024-11-27 23:28:50,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:50,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:28:50,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:50,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:28:50,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:28:50,300 INFO L87 Difference]: Start difference. First operand 16123 states and 22308 transitions. Second operand has 10 states, 10 states have (on average 52.4) internal successors, (524), 10 states have internal predecessors, (524), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:28:51,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:51,684 INFO L93 Difference]: Finished difference Result 42205 states and 58416 transitions. [2024-11-27 23:28:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:28:51,685 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 52.4) internal successors, (524), 10 states have internal predecessors, (524), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 699 [2024-11-27 23:28:51,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:51,714 INFO L225 Difference]: With dead ends: 42205 [2024-11-27 23:28:51,714 INFO L226 Difference]: Without dead ends: 36053 [2024-11-27 23:28:51,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:28:51,726 INFO L435 NwaCegarLoop]: 2653 mSDtfsCounter, 3422 mSDsluCounter, 14023 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 16676 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:51,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3436 Valid, 16676 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:28:51,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36053 states. [2024-11-27 23:28:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36053 to 21119. [2024-11-27 23:28:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21119 states, 20377 states have (on average 1.357609069048437) internal successors, (27664), 20377 states have internal predecessors, (27664), 740 states have call successors, (740), 1 states have call predecessors, (740), 1 states have return successors, (740), 740 states have call predecessors, (740), 740 states have call successors, (740) [2024-11-27 23:28:52,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21119 states to 21119 states and 29144 transitions. [2024-11-27 23:28:52,360 INFO L78 Accepts]: Start accepts. Automaton has 21119 states and 29144 transitions. Word has length 699 [2024-11-27 23:28:52,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:52,360 INFO L471 AbstractCegarLoop]: Abstraction has 21119 states and 29144 transitions. [2024-11-27 23:28:52,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.4) internal successors, (524), 10 states have internal predecessors, (524), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:28:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 21119 states and 29144 transitions. [2024-11-27 23:28:52,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-27 23:28:52,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:52,376 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2024-11-27 23:28:52,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-27 23:28:52,376 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:52,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:52,377 INFO L85 PathProgramCache]: Analyzing trace with hash -181308230, now seen corresponding path program 1 times [2024-11-27 23:28:52,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:52,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168359893] [2024-11-27 23:28:52,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:52,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:02,491 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 194 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:29:02,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:02,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168359893] [2024-11-27 23:29:02,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168359893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:02,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906638014] [2024-11-27 23:29:02,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:02,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:02,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:02,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:02,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:29:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:06,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 3884 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:29:06,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-27 23:29:06,122 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:06,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906638014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:06,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:06,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-27 23:29:06,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628394914] [2024-11-27 23:29:06,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:06,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:29:06,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:06,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:29:06,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:29:06,124 INFO L87 Difference]: Start difference. First operand 21119 states and 29144 transitions. Second operand has 6 states, 5 states have (on average 118.0) internal successors, (590), 6 states have internal predecessors, (590), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:29:06,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:06,782 INFO L93 Difference]: Finished difference Result 30411 states and 42132 transitions. [2024-11-27 23:29:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:29:06,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 118.0) internal successors, (590), 6 states have internal predecessors, (590), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 699 [2024-11-27 23:29:06,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:06,810 INFO L225 Difference]: With dead ends: 30411 [2024-11-27 23:29:06,810 INFO L226 Difference]: Without dead ends: 21119 [2024-11-27 23:29:06,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:29:06,824 INFO L435 NwaCegarLoop]: 1117 mSDtfsCounter, 0 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5562 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:06,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5562 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:06,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21119 states. [2024-11-27 23:29:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21119 to 21119. [2024-11-27 23:29:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21119 states, 20377 states have (on average 1.3497570790597242) internal successors, (27504), 20377 states have internal predecessors, (27504), 740 states have call successors, (740), 1 states have call predecessors, (740), 1 states have return successors, (740), 740 states have call predecessors, (740), 740 states have call successors, (740) [2024-11-27 23:29:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21119 states to 21119 states and 28984 transitions. [2024-11-27 23:29:07,386 INFO L78 Accepts]: Start accepts. Automaton has 21119 states and 28984 transitions. Word has length 699 [2024-11-27 23:29:07,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:07,387 INFO L471 AbstractCegarLoop]: Abstraction has 21119 states and 28984 transitions. [2024-11-27 23:29:07,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 118.0) internal successors, (590), 6 states have internal predecessors, (590), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:29:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand 21119 states and 28984 transitions. [2024-11-27 23:29:07,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-11-27 23:29:07,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:07,403 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2024-11-27 23:29:07,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:29:07,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:07,604 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:07,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:07,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2029918830, now seen corresponding path program 1 times [2024-11-27 23:29:07,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:07,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349960947] [2024-11-27 23:29:07,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:07,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:29:09,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:09,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349960947] [2024-11-27 23:29:09,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349960947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:09,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:09,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:29:09,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588021678] [2024-11-27 23:29:09,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:09,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:29:09,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:09,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:29:09,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:09,255 INFO L87 Difference]: Start difference. First operand 21119 states and 28984 transitions. Second operand has 7 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 23:29:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:10,868 INFO L93 Difference]: Finished difference Result 33481 states and 46257 transitions. [2024-11-27 23:29:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:29:10,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 700 [2024-11-27 23:29:10,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:10,893 INFO L225 Difference]: With dead ends: 33481 [2024-11-27 23:29:10,893 INFO L226 Difference]: Without dead ends: 28921 [2024-11-27 23:29:10,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:10,903 INFO L435 NwaCegarLoop]: 1137 mSDtfsCounter, 2549 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2555 SdHoareTripleChecker+Valid, 4173 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:10,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2555 Valid, 4173 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:29:10,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28921 states. [2024-11-27 23:29:11,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28921 to 27537. [2024-11-27 23:29:11,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27537 states, 26591 states have (on average 1.3509834154413147) internal successors, (35924), 26591 states have internal predecessors, (35924), 944 states have call successors, (944), 1 states have call predecessors, (944), 1 states have return successors, (944), 944 states have call predecessors, (944), 944 states have call successors, (944) [2024-11-27 23:29:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27537 states to 27537 states and 37812 transitions. [2024-11-27 23:29:11,551 INFO L78 Accepts]: Start accepts. Automaton has 27537 states and 37812 transitions. Word has length 700 [2024-11-27 23:29:11,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:11,552 INFO L471 AbstractCegarLoop]: Abstraction has 27537 states and 37812 transitions. [2024-11-27 23:29:11,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 23:29:11,552 INFO L276 IsEmpty]: Start isEmpty. Operand 27537 states and 37812 transitions. [2024-11-27 23:29:11,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-27 23:29:11,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:11,575 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2024-11-27 23:29:11,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-27 23:29:11,575 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:11,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:11,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1662844668, now seen corresponding path program 1 times [2024-11-27 23:29:11,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:11,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458144500] [2024-11-27 23:29:11,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:11,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:22,649 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 188 proven. 8 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:29:22,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:22,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458144500] [2024-11-27 23:29:22,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458144500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:22,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452938968] [2024-11-27 23:29:22,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:22,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:22,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:22,651 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:22,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:29:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:26,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 3890 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-27 23:29:26,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 175 proven. 73 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:29:28,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 121 proven. 75 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:29:32,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452938968] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:32,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:32,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 17, 19] total 42 [2024-11-27 23:29:32,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502787981] [2024-11-27 23:29:32,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:32,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-27 23:29:32,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:32,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-27 23:29:32,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1480, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 23:29:32,259 INFO L87 Difference]: Start difference. First operand 27537 states and 37812 transitions. Second operand has 42 states, 42 states have (on average 39.19047619047619) internal successors, (1646), 42 states have internal predecessors, (1646), 13 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 13 states have call predecessors, (41), 13 states have call successors, (41) [2024-11-27 23:30:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:04,821 INFO L93 Difference]: Finished difference Result 62734 states and 87482 transitions. [2024-11-27 23:30:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2024-11-27 23:30:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 39.19047619047619) internal successors, (1646), 42 states have internal predecessors, (1646), 13 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 13 states have call predecessors, (41), 13 states have call successors, (41) Word has length 701 [2024-11-27 23:30:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:04,851 INFO L225 Difference]: With dead ends: 62734 [2024-11-27 23:30:04,851 INFO L226 Difference]: Without dead ends: 47065 [2024-11-27 23:30:04,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1532 GetRequests, 1373 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7388 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=3959, Invalid=21801, Unknown=0, NotChecked=0, Total=25760 [2024-11-27 23:30:04,861 INFO L435 NwaCegarLoop]: 3846 mSDtfsCounter, 19702 mSDsluCounter, 74335 mSDsCounter, 0 mSdLazyCounter, 40806 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19702 SdHoareTripleChecker+Valid, 78181 SdHoareTripleChecker+Invalid, 40900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 40806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:04,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19702 Valid, 78181 Invalid, 40900 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [94 Valid, 40806 Invalid, 0 Unknown, 0 Unchecked, 24.0s Time] [2024-11-27 23:30:04,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47065 states. [2024-11-27 23:30:05,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47065 to 22549. [2024-11-27 23:30:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22549 states, 21756 states have (on average 1.3363669792241222) internal successors, (29074), 21756 states have internal predecessors, (29074), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:30:05,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22549 states to 22549 states and 30656 transitions. [2024-11-27 23:30:05,451 INFO L78 Accepts]: Start accepts. Automaton has 22549 states and 30656 transitions. Word has length 701 [2024-11-27 23:30:05,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:05,451 INFO L471 AbstractCegarLoop]: Abstraction has 22549 states and 30656 transitions. [2024-11-27 23:30:05,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 39.19047619047619) internal successors, (1646), 42 states have internal predecessors, (1646), 13 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 13 states have call predecessors, (41), 13 states have call successors, (41) [2024-11-27 23:30:05,451 INFO L276 IsEmpty]: Start isEmpty. Operand 22549 states and 30656 transitions. [2024-11-27 23:30:05,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-27 23:30:05,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:05,469 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:30:05,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:30:05,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-27 23:30:05,670 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:05,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:05,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1207735903, now seen corresponding path program 1 times [2024-11-27 23:30:05,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:05,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326016079] [2024-11-27 23:30:05,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:05,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:10,970 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-27 23:30:10,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:10,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326016079] [2024-11-27 23:30:10,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326016079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:10,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:10,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:30:10,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742443968] [2024-11-27 23:30:10,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:10,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:30:10,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:10,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:30:10,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:10,973 INFO L87 Difference]: Start difference. First operand 22549 states and 30656 transitions. Second operand has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:30:11,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:11,698 INFO L93 Difference]: Finished difference Result 28584 states and 39142 transitions. [2024-11-27 23:30:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:30:11,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 703 [2024-11-27 23:30:11,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:11,715 INFO L225 Difference]: With dead ends: 28584 [2024-11-27 23:30:11,715 INFO L226 Difference]: Without dead ends: 23410 [2024-11-27 23:30:11,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:11,720 INFO L435 NwaCegarLoop]: 1765 mSDtfsCounter, 1434 mSDsluCounter, 6371 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 8136 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:11,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 8136 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:11,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23410 states. [2024-11-27 23:30:12,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23410 to 22573. [2024-11-27 23:30:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22573 states, 21780 states have (on average 1.3359963269054178) internal successors, (29098), 21780 states have internal predecessors, (29098), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:30:12,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22573 states to 22573 states and 30680 transitions. [2024-11-27 23:30:12,240 INFO L78 Accepts]: Start accepts. Automaton has 22573 states and 30680 transitions. Word has length 703 [2024-11-27 23:30:12,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:12,240 INFO L471 AbstractCegarLoop]: Abstraction has 22573 states and 30680 transitions. [2024-11-27 23:30:12,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:30:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 22573 states and 30680 transitions. [2024-11-27 23:30:12,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-27 23:30:12,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:12,259 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:12,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-27 23:30:12,259 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:12,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:12,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1009193384, now seen corresponding path program 1 times [2024-11-27 23:30:12,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:12,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109569171] [2024-11-27 23:30:12,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:12,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-11-27 23:30:18,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:18,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109569171] [2024-11-27 23:30:18,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109569171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:18,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:18,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:30:18,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60800559] [2024-11-27 23:30:18,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:18,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:30:18,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:18,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:30:18,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:18,625 INFO L87 Difference]: Start difference. First operand 22573 states and 30680 transitions. Second operand has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 23:30:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:19,196 INFO L93 Difference]: Finished difference Result 27676 states and 37813 transitions. [2024-11-27 23:30:19,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:30:19,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 703 [2024-11-27 23:30:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:19,217 INFO L225 Difference]: With dead ends: 27676 [2024-11-27 23:30:19,217 INFO L226 Difference]: Without dead ends: 22882 [2024-11-27 23:30:19,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:19,225 INFO L435 NwaCegarLoop]: 1897 mSDtfsCounter, 1346 mSDsluCounter, 5680 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 7577 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:19,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 7577 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:19,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22882 states. [2024-11-27 23:30:19,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22882 to 22597. [2024-11-27 23:30:19,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22597 states, 21804 states have (on average 1.3356264905521922) internal successors, (29122), 21804 states have internal predecessors, (29122), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:30:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22597 states to 22597 states and 30704 transitions. [2024-11-27 23:30:19,756 INFO L78 Accepts]: Start accepts. Automaton has 22597 states and 30704 transitions. Word has length 703 [2024-11-27 23:30:19,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:19,756 INFO L471 AbstractCegarLoop]: Abstraction has 22597 states and 30704 transitions. [2024-11-27 23:30:19,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 23:30:19,757 INFO L276 IsEmpty]: Start isEmpty. Operand 22597 states and 30704 transitions. [2024-11-27 23:30:19,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-27 23:30:19,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:19,777 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:19,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-27 23:30:19,777 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:19,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:19,778 INFO L85 PathProgramCache]: Analyzing trace with hash -930074598, now seen corresponding path program 1 times [2024-11-27 23:30:19,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:19,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777445452] [2024-11-27 23:30:19,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:19,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:26,003 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 134 proven. 1 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-27 23:30:26,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:26,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777445452] [2024-11-27 23:30:26,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777445452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:26,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449779738] [2024-11-27 23:30:26,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:26,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:26,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:26,005 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:26,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:30:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:29,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 3896 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 23:30:29,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:30,995 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-27 23:30:30,995 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:30,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449779738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:30,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:30,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-27 23:30:30,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480219674] [2024-11-27 23:30:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:30,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:30:30,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:30,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:30:30,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:30:30,997 INFO L87 Difference]: Start difference. First operand 22597 states and 30704 transitions. Second operand has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 23:30:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:32,583 INFO L93 Difference]: Finished difference Result 37025 states and 50163 transitions. [2024-11-27 23:30:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:30:32,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 703 [2024-11-27 23:30:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:32,606 INFO L225 Difference]: With dead ends: 37025 [2024-11-27 23:30:32,606 INFO L226 Difference]: Without dead ends: 22831 [2024-11-27 23:30:32,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:30:32,621 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 672 mSDsluCounter, 3999 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 4810 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:32,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 4810 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:30:32,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22831 states. [2024-11-27 23:30:33,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22831 to 22714. [2024-11-27 23:30:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22714 states, 21921 states have (on average 1.333835135258428) internal successors, (29239), 21921 states have internal predecessors, (29239), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:30:33,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22714 states to 22714 states and 30821 transitions. [2024-11-27 23:30:33,162 INFO L78 Accepts]: Start accepts. Automaton has 22714 states and 30821 transitions. Word has length 703 [2024-11-27 23:30:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:33,162 INFO L471 AbstractCegarLoop]: Abstraction has 22714 states and 30821 transitions. [2024-11-27 23:30:33,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 23:30:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 22714 states and 30821 transitions. [2024-11-27 23:30:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-27 23:30:33,182 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:33,182 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:30:33,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:33,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:33,382 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:33,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:33,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1917850044, now seen corresponding path program 1 times [2024-11-27 23:30:33,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:33,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066925950] [2024-11-27 23:30:33,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:33,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 4 proven. 196 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:30:40,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:40,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066925950] [2024-11-27 23:30:40,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066925950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:40,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723760980] [2024-11-27 23:30:40,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:40,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:40,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:40,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:40,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:30:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:45,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 3894 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:30:45,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-27 23:30:45,178 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:45,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723760980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:45,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:45,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2024-11-27 23:30:45,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102246700] [2024-11-27 23:30:45,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:45,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:30:45,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:45,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:30:45,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:30:45,180 INFO L87 Difference]: Start difference. First operand 22714 states and 30821 transitions. Second operand has 6 states, 5 states have (on average 117.8) internal successors, (589), 6 states have internal predecessors, (589), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:30:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:45,760 INFO L93 Difference]: Finished difference Result 30591 states and 41799 transitions. [2024-11-27 23:30:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 117.8) internal successors, (589), 6 states have internal predecessors, (589), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 703 [2024-11-27 23:30:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:45,786 INFO L225 Difference]: With dead ends: 30591 [2024-11-27 23:30:45,786 INFO L226 Difference]: Without dead ends: 22714 [2024-11-27 23:30:45,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:30:45,798 INFO L435 NwaCegarLoop]: 1116 mSDtfsCounter, 0 mSDsluCounter, 4437 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:45,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5553 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:45,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22714 states. [2024-11-27 23:30:46,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22714 to 22714. [2024-11-27 23:30:46,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22714 states, 21921 states have (on average 1.327859130514119) internal successors, (29108), 21921 states have internal predecessors, (29108), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:30:46,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22714 states to 22714 states and 30690 transitions. [2024-11-27 23:30:46,515 INFO L78 Accepts]: Start accepts. Automaton has 22714 states and 30690 transitions. Word has length 703 [2024-11-27 23:30:46,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:46,515 INFO L471 AbstractCegarLoop]: Abstraction has 22714 states and 30690 transitions. [2024-11-27 23:30:46,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 117.8) internal successors, (589), 6 states have internal predecessors, (589), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:30:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand 22714 states and 30690 transitions. [2024-11-27 23:30:46,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-27 23:30:46,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:46,640 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:30:46,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:46,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2024-11-27 23:30:46,840 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:46,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:46,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1483560100, now seen corresponding path program 1 times [2024-11-27 23:30:46,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:46,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698803335] [2024-11-27 23:30:46,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:46,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 4 proven. 198 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:30:55,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:55,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698803335] [2024-11-27 23:30:55,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698803335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:55,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917942081] [2024-11-27 23:30:55,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:55,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:55,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:55,324 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:55,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:30:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:59,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 3894 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:30:59,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-27 23:30:59,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:59,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917942081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:59,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:59,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2024-11-27 23:30:59,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609562275] [2024-11-27 23:30:59,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:59,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:30:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:59,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:30:59,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:30:59,724 INFO L87 Difference]: Start difference. First operand 22714 states and 30690 transitions. Second operand has 6 states, 5 states have (on average 124.8) internal successors, (624), 6 states have internal predecessors, (624), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:31:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:00,512 INFO L93 Difference]: Finished difference Result 39695 states and 53330 transitions. [2024-11-27 23:31:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:31:00,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 124.8) internal successors, (624), 6 states have internal predecessors, (624), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 703 [2024-11-27 23:31:00,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:00,543 INFO L225 Difference]: With dead ends: 39695 [2024-11-27 23:31:00,543 INFO L226 Difference]: Without dead ends: 22714 [2024-11-27 23:31:00,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:31:00,559 INFO L435 NwaCegarLoop]: 1113 mSDtfsCounter, 0 mSDsluCounter, 4429 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5542 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:00,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5542 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22714 states. [2024-11-27 23:31:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22714 to 22714. [2024-11-27 23:31:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22714 states, 21921 states have (on average 1.3223849276949045) internal successors, (28988), 21921 states have internal predecessors, (28988), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:31:01,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22714 states to 22714 states and 30570 transitions. [2024-11-27 23:31:01,234 INFO L78 Accepts]: Start accepts. Automaton has 22714 states and 30570 transitions. Word has length 703 [2024-11-27 23:31:01,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:01,234 INFO L471 AbstractCegarLoop]: Abstraction has 22714 states and 30570 transitions. [2024-11-27 23:31:01,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 124.8) internal successors, (624), 6 states have internal predecessors, (624), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:31:01,234 INFO L276 IsEmpty]: Start isEmpty. Operand 22714 states and 30570 transitions. [2024-11-27 23:31:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-27 23:31:01,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:01,252 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:31:01,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:31:01,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2024-11-27 23:31:01,453 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:01,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:01,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1743976476, now seen corresponding path program 1 times [2024-11-27 23:31:01,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:01,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418150152] [2024-11-27 23:31:01,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:01,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 123 proven. 79 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:31:13,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:13,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418150152] [2024-11-27 23:31:13,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418150152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:13,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229495623] [2024-11-27 23:31:13,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:13,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:13,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:13,042 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:13,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:31:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:17,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 3894 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:31:17,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-11-27 23:31:17,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:17,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229495623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:17,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:17,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-27 23:31:17,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417562696] [2024-11-27 23:31:17,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:17,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:31:17,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:17,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:31:17,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:17,722 INFO L87 Difference]: Start difference. First operand 22714 states and 30570 transitions. Second operand has 6 states, 5 states have (on average 92.2) internal successors, (461), 6 states have internal predecessors, (461), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:31:18,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:18,398 INFO L93 Difference]: Finished difference Result 41963 states and 56222 transitions. [2024-11-27 23:31:18,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:31:18,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 92.2) internal successors, (461), 6 states have internal predecessors, (461), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 703 [2024-11-27 23:31:18,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:18,417 INFO L225 Difference]: With dead ends: 41963 [2024-11-27 23:31:18,417 INFO L226 Difference]: Without dead ends: 22714 [2024-11-27 23:31:18,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:18,427 INFO L435 NwaCegarLoop]: 1114 mSDtfsCounter, 0 mSDsluCounter, 4429 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5543 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:18,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5543 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:18,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22714 states. [2024-11-27 23:31:18,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22714 to 22714. [2024-11-27 23:31:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22714 states, 21921 states have (on average 1.31691072487569) internal successors, (28868), 21921 states have internal predecessors, (28868), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:31:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22714 states to 22714 states and 30450 transitions. [2024-11-27 23:31:18,943 INFO L78 Accepts]: Start accepts. Automaton has 22714 states and 30450 transitions. Word has length 703 [2024-11-27 23:31:18,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:18,943 INFO L471 AbstractCegarLoop]: Abstraction has 22714 states and 30450 transitions. [2024-11-27 23:31:18,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 92.2) internal successors, (461), 6 states have internal predecessors, (461), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:31:18,943 INFO L276 IsEmpty]: Start isEmpty. Operand 22714 states and 30450 transitions. [2024-11-27 23:31:18,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-27 23:31:18,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:18,961 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:31:18,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 23:31:19,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-11-27 23:31:19,162 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:19,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:19,162 INFO L85 PathProgramCache]: Analyzing trace with hash -822885821, now seen corresponding path program 1 times [2024-11-27 23:31:19,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:19,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567590098] [2024-11-27 23:31:19,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:19,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:20,500 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2024-11-27 23:31:20,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:20,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567590098] [2024-11-27 23:31:20,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567590098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:20,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:20,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:31:20,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819132590] [2024-11-27 23:31:20,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:20,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:31:20,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:20,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:31:20,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:31:20,502 INFO L87 Difference]: Start difference. First operand 22714 states and 30450 transitions. Second operand has 6 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:31:21,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:21,675 INFO L93 Difference]: Finished difference Result 29073 states and 39292 transitions. [2024-11-27 23:31:21,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:31:21,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 704 [2024-11-27 23:31:21,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:21,812 INFO L225 Difference]: With dead ends: 29073 [2024-11-27 23:31:21,813 INFO L226 Difference]: Without dead ends: 22746 [2024-11-27 23:31:21,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:31:21,816 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 1021 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:21,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 3281 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:31:21,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22746 states. [2024-11-27 23:31:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22746 to 22730. [2024-11-27 23:31:22,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22730 states, 21937 states have (on average 1.3166795824406254) internal successors, (28884), 21937 states have internal predecessors, (28884), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:31:22,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22730 states to 22730 states and 30466 transitions. [2024-11-27 23:31:22,326 INFO L78 Accepts]: Start accepts. Automaton has 22730 states and 30466 transitions. Word has length 704 [2024-11-27 23:31:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:22,326 INFO L471 AbstractCegarLoop]: Abstraction has 22730 states and 30466 transitions. [2024-11-27 23:31:22,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:31:22,326 INFO L276 IsEmpty]: Start isEmpty. Operand 22730 states and 30466 transitions. [2024-11-27 23:31:22,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-27 23:31:22,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:22,345 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:31:22,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-27 23:31:22,345 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:22,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash -577383471, now seen corresponding path program 1 times [2024-11-27 23:31:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:22,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065587108] [2024-11-27 23:31:22,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:22,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 123 proven. 80 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:31:29,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:29,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065587108] [2024-11-27 23:31:29,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065587108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:29,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076872849] [2024-11-27 23:31:29,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:29,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:29,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:29,371 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:29,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:31:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:34,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 3897 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:31:34,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:34,688 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-27 23:31:34,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:34,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076872849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:34,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:34,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-27 23:31:34,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555045568] [2024-11-27 23:31:34,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:34,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:31:34,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:34,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:31:34,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:34,691 INFO L87 Difference]: Start difference. First operand 22730 states and 30466 transitions. Second operand has 6 states, 5 states have (on average 121.4) internal successors, (607), 6 states have internal predecessors, (607), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 23:31:35,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:35,326 INFO L93 Difference]: Finished difference Result 36967 states and 49471 transitions. [2024-11-27 23:31:35,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:31:35,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 121.4) internal successors, (607), 6 states have internal predecessors, (607), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 704 [2024-11-27 23:31:35,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:35,348 INFO L225 Difference]: With dead ends: 36967 [2024-11-27 23:31:35,348 INFO L226 Difference]: Without dead ends: 22730 [2024-11-27 23:31:35,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:35,362 INFO L435 NwaCegarLoop]: 1111 mSDtfsCounter, 0 mSDsluCounter, 4421 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5532 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:35,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5532 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:35,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22730 states. [2024-11-27 23:31:35,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22730 to 22730. [2024-11-27 23:31:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22730 states, 21937 states have (on average 1.3113461275470666) internal successors, (28767), 21937 states have internal predecessors, (28767), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:31:35,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22730 states to 22730 states and 30349 transitions. [2024-11-27 23:31:35,981 INFO L78 Accepts]: Start accepts. Automaton has 22730 states and 30349 transitions. Word has length 704 [2024-11-27 23:31:35,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:35,982 INFO L471 AbstractCegarLoop]: Abstraction has 22730 states and 30349 transitions. [2024-11-27 23:31:35,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 121.4) internal successors, (607), 6 states have internal predecessors, (607), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 23:31:35,982 INFO L276 IsEmpty]: Start isEmpty. Operand 22730 states and 30349 transitions. [2024-11-27 23:31:36,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-27 23:31:36,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:36,000 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:31:36,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 23:31:36,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:36,201 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:36,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash 250695372, now seen corresponding path program 1 times [2024-11-27 23:31:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:36,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604078242] [2024-11-27 23:31:36,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:36,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:45,937 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2024-11-27 23:31:45,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:45,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604078242] [2024-11-27 23:31:45,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604078242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:45,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461081591] [2024-11-27 23:31:45,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:45,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:45,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:45,939 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:45,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:31:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:50,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 3903 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-27 23:31:50,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 240 proven. 30 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2024-11-27 23:31:52,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 195 proven. 37 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-27 23:31:54,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461081591] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:54,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:31:54,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 14, 15] total 31 [2024-11-27 23:31:54,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362076768] [2024-11-27 23:31:54,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:54,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-27 23:31:54,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:54,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-27 23:31:54,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=754, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:31:54,678 INFO L87 Difference]: Start difference. First operand 22730 states and 30349 transitions. Second operand has 31 states, 29 states have (on average 53.3448275862069) internal successors, (1547), 31 states have internal predecessors, (1547), 7 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 5 states have call predecessors, (30), 7 states have call successors, (30) [2024-11-27 23:31:58,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:58,427 INFO L93 Difference]: Finished difference Result 38676 states and 52083 transitions. [2024-11-27 23:31:58,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 23:31:58,427 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 53.3448275862069) internal successors, (1547), 31 states have internal predecessors, (1547), 7 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 5 states have call predecessors, (30), 7 states have call successors, (30) Word has length 706 [2024-11-27 23:31:58,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:58,458 INFO L225 Difference]: With dead ends: 38676 [2024-11-27 23:31:58,458 INFO L226 Difference]: Without dead ends: 31711 [2024-11-27 23:31:58,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1388 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=318, Invalid=1404, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 23:31:58,469 INFO L435 NwaCegarLoop]: 798 mSDtfsCounter, 4112 mSDsluCounter, 11116 mSDsCounter, 0 mSdLazyCounter, 5031 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4116 SdHoareTripleChecker+Valid, 11914 SdHoareTripleChecker+Invalid, 5036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:58,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4116 Valid, 11914 Invalid, 5036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 5031 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-27 23:31:58,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31711 states. [2024-11-27 23:31:59,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31711 to 22700. [2024-11-27 23:31:59,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22700 states, 21907 states have (on average 1.3101291824530972) internal successors, (28701), 21907 states have internal predecessors, (28701), 791 states have call successors, (791), 1 states have call predecessors, (791), 1 states have return successors, (791), 791 states have call predecessors, (791), 791 states have call successors, (791) [2024-11-27 23:31:59,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22700 states to 22700 states and 30283 transitions. [2024-11-27 23:31:59,191 INFO L78 Accepts]: Start accepts. Automaton has 22700 states and 30283 transitions. Word has length 706 [2024-11-27 23:31:59,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:59,191 INFO L471 AbstractCegarLoop]: Abstraction has 22700 states and 30283 transitions. [2024-11-27 23:31:59,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 53.3448275862069) internal successors, (1547), 31 states have internal predecessors, (1547), 7 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 5 states have call predecessors, (30), 7 states have call successors, (30) [2024-11-27 23:31:59,192 INFO L276 IsEmpty]: Start isEmpty. Operand 22700 states and 30283 transitions. [2024-11-27 23:31:59,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-27 23:31:59,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:59,209 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:59,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 23:31:59,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:59,409 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:59,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1325888812, now seen corresponding path program 1 times [2024-11-27 23:31:59,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:59,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727511338] [2024-11-27 23:31:59,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:59,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 110 proven. 56 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-11-27 23:32:08,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:08,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727511338] [2024-11-27 23:32:08,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727511338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:08,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389497960] [2024-11-27 23:32:08,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:08,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:08,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:08,855 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:08,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:32:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:13,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 3903 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:32:13,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:32:14,248 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:14,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389497960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:14,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:14,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-27 23:32:14,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723937318] [2024-11-27 23:32:14,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:14,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:14,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:14,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:14,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:32:14,250 INFO L87 Difference]: Start difference. First operand 22700 states and 30283 transitions. Second operand has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:32:16,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:16,043 INFO L93 Difference]: Finished difference Result 33010 states and 44656 transitions. [2024-11-27 23:32:16,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:32:16,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 706 [2024-11-27 23:32:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:16,071 INFO L225 Difference]: With dead ends: 33010 [2024-11-27 23:32:16,071 INFO L226 Difference]: Without dead ends: 27579 [2024-11-27 23:32:16,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 706 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:32:16,081 INFO L435 NwaCegarLoop]: 1360 mSDtfsCounter, 1446 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 4821 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:16,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 4821 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:32:16,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27579 states. [2024-11-27 23:32:16,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27579 to 23200. [2024-11-27 23:32:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23200 states, 22378 states have (on average 1.3097685226561802) internal successors, (29310), 22378 states have internal predecessors, (29310), 820 states have call successors, (820), 1 states have call predecessors, (820), 1 states have return successors, (820), 820 states have call predecessors, (820), 820 states have call successors, (820) [2024-11-27 23:32:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23200 states to 23200 states and 30950 transitions. [2024-11-27 23:32:16,781 INFO L78 Accepts]: Start accepts. Automaton has 23200 states and 30950 transitions. Word has length 706 [2024-11-27 23:32:16,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:16,781 INFO L471 AbstractCegarLoop]: Abstraction has 23200 states and 30950 transitions. [2024-11-27 23:32:16,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 23:32:16,781 INFO L276 IsEmpty]: Start isEmpty. Operand 23200 states and 30950 transitions. [2024-11-27 23:32:16,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-27 23:32:16,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:16,800 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:32:16,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:17,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-11-27 23:32:17,001 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:17,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:17,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1807917213, now seen corresponding path program 1 times [2024-11-27 23:32:17,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:17,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090810717] [2024-11-27 23:32:17,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:17,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 123 proven. 81 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:32:26,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:26,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090810717] [2024-11-27 23:32:26,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090810717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:26,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769217019] [2024-11-27 23:32:26,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:26,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:26,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:26,173 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:26,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:32:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:32,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 3903 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:32:32,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:32,501 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 194 proven. 10 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:32:32,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:32:33,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769217019] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:33,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:33,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 8] total 20 [2024-11-27 23:32:33,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705894137] [2024-11-27 23:32:33,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:33,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:32:33,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:33,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:32:33,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:32:33,050 INFO L87 Difference]: Start difference. First operand 23200 states and 30950 transitions. Second operand has 7 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:32:33,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:33,784 INFO L93 Difference]: Finished difference Result 32383 states and 43568 transitions. [2024-11-27 23:32:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:32:33,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 706 [2024-11-27 23:32:33,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:33,810 INFO L225 Difference]: With dead ends: 32383 [2024-11-27 23:32:33,810 INFO L226 Difference]: Without dead ends: 27798 [2024-11-27 23:32:33,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1422 GetRequests, 1402 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:32:33,819 INFO L435 NwaCegarLoop]: 1960 mSDtfsCounter, 704 mSDsluCounter, 8930 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 10890 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:33,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 10890 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:32:33,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27798 states. [2024-11-27 23:32:34,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27798 to 27237. [2024-11-27 23:32:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27237 states, 26315 states have (on average 1.3153334600038) internal successors, (34613), 26315 states have internal predecessors, (34613), 920 states have call successors, (920), 1 states have call predecessors, (920), 1 states have return successors, (920), 920 states have call predecessors, (920), 920 states have call successors, (920) [2024-11-27 23:32:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27237 states to 27237 states and 36453 transitions. [2024-11-27 23:32:34,728 INFO L78 Accepts]: Start accepts. Automaton has 27237 states and 36453 transitions. Word has length 706 [2024-11-27 23:32:34,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:34,728 INFO L471 AbstractCegarLoop]: Abstraction has 27237 states and 36453 transitions. [2024-11-27 23:32:34,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-27 23:32:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 27237 states and 36453 transitions. [2024-11-27 23:32:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-27 23:32:34,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:34,757 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:32:34,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 23:32:34,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:34,958 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:34,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:34,958 INFO L85 PathProgramCache]: Analyzing trace with hash -95159541, now seen corresponding path program 1 times [2024-11-27 23:32:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:34,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170124099] [2024-11-27 23:32:34,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:34,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:36,530 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2024-11-27 23:32:36,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:36,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170124099] [2024-11-27 23:32:36,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170124099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:36,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:36,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:32:36,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956222461] [2024-11-27 23:32:36,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:36,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:32:36,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:36,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:32:36,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:36,532 INFO L87 Difference]: Start difference. First operand 27237 states and 36453 transitions. Second operand has 5 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:32:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:37,270 INFO L93 Difference]: Finished difference Result 37324 states and 50330 transitions. [2024-11-27 23:32:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:32:37,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 706 [2024-11-27 23:32:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:37,302 INFO L225 Difference]: With dead ends: 37324 [2024-11-27 23:32:37,302 INFO L226 Difference]: Without dead ends: 27561 [2024-11-27 23:32:37,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:37,314 INFO L435 NwaCegarLoop]: 1116 mSDtfsCounter, 16 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4452 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:37,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4452 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:32:37,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27561 states. [2024-11-27 23:32:38,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27561 to 27561. [2024-11-27 23:32:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27561 states, 26639 states have (on average 1.315777619280003) internal successors, (35051), 26639 states have internal predecessors, (35051), 920 states have call successors, (920), 1 states have call predecessors, (920), 1 states have return successors, (920), 920 states have call predecessors, (920), 920 states have call successors, (920) [2024-11-27 23:32:38,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27561 states to 27561 states and 36891 transitions. [2024-11-27 23:32:38,228 INFO L78 Accepts]: Start accepts. Automaton has 27561 states and 36891 transitions. Word has length 706 [2024-11-27 23:32:38,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:38,228 INFO L471 AbstractCegarLoop]: Abstraction has 27561 states and 36891 transitions. [2024-11-27 23:32:38,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 23:32:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 27561 states and 36891 transitions. [2024-11-27 23:32:38,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2024-11-27 23:32:38,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:38,255 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:32:38,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-27 23:32:38,255 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:38,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:38,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1325053367, now seen corresponding path program 1 times [2024-11-27 23:32:38,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:38,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957428072] [2024-11-27 23:32:38,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:38,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 123 proven. 81 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:32:52,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957428072] [2024-11-27 23:32:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957428072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515582165] [2024-11-27 23:32:52,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:52,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:52,087 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:52,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 23:32:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:58,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 3906 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-27 23:32:58,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 175 proven. 81 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:33:00,470 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 121 proven. 83 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:33:03,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515582165] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:03,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:03,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 26 [2024-11-27 23:33:03,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552517963] [2024-11-27 23:33:03,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:03,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:33:03,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:03,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:33:03,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:33:03,013 INFO L87 Difference]: Start difference. First operand 27561 states and 36891 transitions. Second operand has 26 states, 26 states have (on average 63.92307692307692) internal successors, (1662), 26 states have internal predecessors, (1662), 10 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) [2024-11-27 23:33:09,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:09,897 INFO L93 Difference]: Finished difference Result 49719 states and 67446 transitions. [2024-11-27 23:33:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 23:33:09,898 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 63.92307692307692) internal successors, (1662), 26 states have internal predecessors, (1662), 10 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) Word has length 707 [2024-11-27 23:33:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:09,949 INFO L225 Difference]: With dead ends: 49719 [2024-11-27 23:33:09,949 INFO L226 Difference]: Without dead ends: 40889 [2024-11-27 23:33:09,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1444 GetRequests, 1400 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=345, Invalid=1725, Unknown=0, NotChecked=0, Total=2070 [2024-11-27 23:33:09,970 INFO L435 NwaCegarLoop]: 1679 mSDtfsCounter, 10509 mSDsluCounter, 15877 mSDsCounter, 0 mSdLazyCounter, 7988 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10516 SdHoareTripleChecker+Valid, 17556 SdHoareTripleChecker+Invalid, 8007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 7988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:09,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10516 Valid, 17556 Invalid, 8007 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 7988 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-27 23:33:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40889 states. [2024-11-27 23:33:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40889 to 27989. [2024-11-27 23:33:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27989 states, 27025 states have (on average 1.3117853839037927) internal successors, (35451), 27025 states have internal predecessors, (35451), 962 states have call successors, (962), 1 states have call predecessors, (962), 1 states have return successors, (962), 962 states have call predecessors, (962), 962 states have call successors, (962) [2024-11-27 23:33:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27989 states to 27989 states and 37375 transitions. [2024-11-27 23:33:10,872 INFO L78 Accepts]: Start accepts. Automaton has 27989 states and 37375 transitions. Word has length 707 [2024-11-27 23:33:10,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:10,873 INFO L471 AbstractCegarLoop]: Abstraction has 27989 states and 37375 transitions. [2024-11-27 23:33:10,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 63.92307692307692) internal successors, (1662), 26 states have internal predecessors, (1662), 10 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 10 states have call predecessors, (41), 10 states have call successors, (41) [2024-11-27 23:33:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 27989 states and 37375 transitions. [2024-11-27 23:33:11,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2024-11-27 23:33:11,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:11,020 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:33:11,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 23:33:11,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:11,221 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:11,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:11,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1177143798, now seen corresponding path program 1 times [2024-11-27 23:33:11,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:11,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757119071] [2024-11-27 23:33:11,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:11,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 111 proven. 97 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:33:24,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:24,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757119071] [2024-11-27 23:33:24,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757119071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:24,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552426567] [2024-11-27 23:33:24,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:24,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:24,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:24,690 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:24,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 23:33:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:30,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 3907 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 23:33:30,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 279 proven. 61 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-27 23:33:32,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 147 proven. 61 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:33:35,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552426567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:35,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:35,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-11-27 23:33:35,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276834301] [2024-11-27 23:33:35,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:35,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-27 23:33:35,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:35,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-27 23:33:35,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2024-11-27 23:33:35,507 INFO L87 Difference]: Start difference. First operand 27989 states and 37375 transitions. Second operand has 32 states, 32 states have (on average 51.71875) internal successors, (1655), 32 states have internal predecessors, (1655), 7 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) [2024-11-27 23:33:57,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:57,446 INFO L93 Difference]: Finished difference Result 119171 states and 160417 transitions. [2024-11-27 23:33:57,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-11-27 23:33:57,447 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 51.71875) internal successors, (1655), 32 states have internal predecessors, (1655), 7 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) Word has length 708 [2024-11-27 23:33:57,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:57,552 INFO L225 Difference]: With dead ends: 119171 [2024-11-27 23:33:57,552 INFO L226 Difference]: Without dead ends: 107844 [2024-11-27 23:33:57,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1517 GetRequests, 1403 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4079 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1658, Invalid=11682, Unknown=0, NotChecked=0, Total=13340 [2024-11-27 23:33:57,574 INFO L435 NwaCegarLoop]: 3030 mSDtfsCounter, 12702 mSDsluCounter, 51469 mSDsCounter, 0 mSdLazyCounter, 23815 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12709 SdHoareTripleChecker+Valid, 54499 SdHoareTripleChecker+Invalid, 23914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 23815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:57,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12709 Valid, 54499 Invalid, 23914 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [99 Valid, 23815 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2024-11-27 23:33:57,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107844 states. [2024-11-27 23:33:59,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107844 to 45081. [2024-11-27 23:33:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45081 states, 43409 states have (on average 1.2999838743117786) internal successors, (56431), 43409 states have internal predecessors, (56431), 1670 states have call successors, (1670), 1 states have call predecessors, (1670), 1 states have return successors, (1670), 1670 states have call predecessors, (1670), 1670 states have call successors, (1670) [2024-11-27 23:33:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45081 states to 45081 states and 59771 transitions. [2024-11-27 23:33:59,663 INFO L78 Accepts]: Start accepts. Automaton has 45081 states and 59771 transitions. Word has length 708 [2024-11-27 23:33:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:59,664 INFO L471 AbstractCegarLoop]: Abstraction has 45081 states and 59771 transitions. [2024-11-27 23:33:59,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 51.71875) internal successors, (1655), 32 states have internal predecessors, (1655), 7 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) [2024-11-27 23:33:59,665 INFO L276 IsEmpty]: Start isEmpty. Operand 45081 states and 59771 transitions. [2024-11-27 23:33:59,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2024-11-27 23:33:59,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:59,711 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:33:59,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 23:33:59,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2024-11-27 23:33:59,912 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:59,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash 12546213, now seen corresponding path program 1 times [2024-11-27 23:33:59,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:59,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382295264] [2024-11-27 23:33:59,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:59,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 135 proven. 70 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:34:07,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:07,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382295264] [2024-11-27 23:34:07,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382295264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:07,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919361671] [2024-11-27 23:34:07,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:07,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:07,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:07,722 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:07,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93467ae8-1ddb-4c80-8af9-5d8a79b020c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 23:34:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:13,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 3912 conjuncts, 149 conjuncts are in the unsatisfiable core [2024-11-27 23:34:13,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 111 proven. 94 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:34:20,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:37,274 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 4 proven. 201 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 23:34:37,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919361671] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:34:37,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:34:37,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 31] total 66 [2024-11-27 23:34:37,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287788564] [2024-11-27 23:34:37,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:37,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-27 23:34:37,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:37,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-27 23:34:37,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=3876, Unknown=0, NotChecked=0, Total=4290 [2024-11-27 23:34:37,280 INFO L87 Difference]: Start difference. First operand 45081 states and 59771 transitions. Second operand has 66 states, 66 states have (on average 27.21212121212121) internal successors, (1796), 66 states have internal predecessors, (1796), 14 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42)